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PC1066 RDRAM vs. DDR SDRAM

CmdrTaco posted more than 12 years ago | from the tweaking-something-out dept.

Hardware 183

Brad wrote into send us his "Comparison of PC1066 RDRAM vs DDR SDRAM. Quote - RDRAM is considerably more expensive that DDR SDRAM, and up until now the 100MHz PC800 specification didn't do well in comparison. Just recently 133MHz PC1066 was launched, and is now officially supported by the new Intel P4 and the Intel 850E core logic chipset, but this time promises to bring memory performance to the next level."

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Memorial Day Early Post (0, Insightful)

Anonymous Coward | more than 12 years ago | (#3591092)

I would like to take this opportunity to remind you to pause and reflect on the rights, freedoms, and way of life others have fought to preserve for us. We take a lot for granted here in America; worry about way too many trivial things when we really should be thankful for what we have and striving to make even parts of our lifestyle possible for others. If you know someone in your life who has sacrificed for our country, please remember to let them know that you appreciate them. Honor the fallen by comemmorating their achievements and remembering their lives. Happy Memorial Day, everyone. Now back to the trolling.

Re:Memorial Day Early Post (1, Funny)

Anonymous Coward | more than 12 years ago | (#3591207)

Offtopic? Slashdot is anti-America!

I demand you commie terrorists mod this back up!

Oh, well my bad. (0)

Anonymous Coward | more than 12 years ago | (#3591232)

I forgot where I was! Here's a handful of more appropriate material for you Grumpy Guses.

1 [marxists.org]
2 [google.com]
3 [arnoldpublishers.com]
4 [time.com]
5 [art-bin.com]

peace post (-1)

cmdr_shithead (527909) | more than 12 years ago | (#3591266)

no more war!

thanks (0)

Anonymous Coward | more than 12 years ago | (#3591278)

read gmhowell's journal about Rolling Thunder, pretty interesting.

1066? (2, Offtopic)

Sydney Weidman (187981) | more than 12 years ago | (#3591096)

Why name memory chip standard after the year in which the Battle of Hastings was fought?

Re:1066? (0, Offtopic)

saphena (322272) | more than 12 years ago | (#3591105)

1066 is the only historical date anyone can remember after they leave school.

Re:1066? (2, Funny)

acceleriter (231439) | more than 12 years ago | (#3591147)

Because 1215, 1776 and 1787 don't mean much in the technological world anymore, thanks to the intellectual "property" cartel?

Re:1066? (0)

Anonymous Coward | more than 12 years ago | (#3591294)

Yet, speaking of unexprected numbers: 0000 happens to be the lowest number possible... ...as was mentioned in bypassing by XXXX in a cab in London.

Q1: Who was XXXX?
Q2: Which number is 0000?
Q3: What are the relations?

First to know, will, surely, make themselves announced...

Re:1066? (0)

Anonymous Coward | more than 12 years ago | (#3591427)

Hardy, Godfrey H. (1877 - 1947) reminiscing about Ramanujan:

I remember once going to see him when he was lying ill at Putney. I had ridden in taxi cab number 1729 and remarked that the number seemed to me rather a dull one, and that I hoped it was not an unfavorable omen. "No," he replied, "it is a very interesting number; it is the smallest number expressible as the sum of two cubes in two different ways."

function exceeding form? (0)

Anonymous Coward | more than 12 years ago | (#3591106)

fine, this is all well and good, but how fast does it actually need to be before the gains are no longer better than the costs?

Re:function exceeding form? (2)

danamania (540950) | more than 12 years ago | (#3591176)

fine, this is all well and good, but how fast does it actually need to be before the gains are no longer better than the costs?

I'd presume when it all as a whole stops memory technology as a whole from progressing. At the moment a 'considerably more expensive' RDRAM setup may only give slight performance gains (which is a pity for people who buy it expecting more) but the less we rely on one single standard that becomes stretched as far as it can, the better. Future proofing in a way, perhaps. Suddenly next year we could be facing an incredible advance in cpu speed which absolutely requires speed at costs that are now prohibitive to work at its best.

Just who's going to need terahertz cpu's with terabyte/sec bandwidth... is another question :D. (yes thats an exaggeration - y'get the idea!)

a grrl & her server [danamania.com]

Bandwidth is nice. Latency is evil... (4, Informative)

Svartalf (2997) | more than 12 years ago | (#3591206)

While the benchmarks he ran show nice bandwidth figures (Negligible, really, in light of how expensive that RDRAM is- if that's all this new memory spec can do, well...) it doesn't tell the whole story. There's bandwidth and then there's latency. In the case of RAMBUS, there's more latency involved with the access of the memory than with DDR SDRAM- latency that may eat some or all the bandwidth gains you see there when you start doing something other than benchmarks. If it's not really much faster (Sorry, it's not when you start looking at the bigger picture), why are you spending 3 or more times for it?

Re:Bandwidth is nice. Latency is evil... (2)

danamania (540950) | more than 12 years ago | (#3591243)

There's bandwidth and then there's latency. In the case of RAMBUS, there's more latency involved with the access of the memory than with DDR SDRAM- latency that may eat some or all the bandwidth gains you see there when you start doing something other than benchmarks.

Aye, I can see where that would certainly limit things for general-purpose computing, where one device is needed to do a bit of everything - but perhaps some situations, where constant linear access of RAM is needed may benefit from DDR. Today anyway...

I don't know - I'm not quite that into the tech, more throwing around ideas. I do tend to go with the idea that everything is somewhat useful in its' own way, and has the possibility to lead to the incredible. It's a bit pollyanna, but this is slashdot and there's enough negative to balance out *grin*

a grrl & her server [danamania.com]

Re:Bandwidth is nice. Latency is evil... (1)

Beliskner (566513) | more than 12 years ago | (#3591926)

Agreed. 3% change is nothing to write home about. The RDRAM has the same bandwidth as the DDR, but DDR having to share the system bus is turning into a real disadvantage. I'm not saying RDRAM is better though - maybe we just need to redesign DDR motherboards so that it's bus goes straight to the CPU. This would mean that the increase in speed from DDR 266 to DDR 333 will be immediately effective through superficial memory bus clock changes.

I think this hybrid design of a compromise between DDR and RDRAM would give the best performance. It would relieve the need to ramp up the speed of the shared system bus AND all devices connected to it. Any ideas on fixing the problem when the memory needs to communicate with the system bus? A crossover or using the CPU as a bridge? Ah well, it was nice dreaming for a little while.

Phew! (1, Interesting)

Anonymous Coward | more than 12 years ago | (#3591107)

I was wondering what was going to come along to give PC/OS manufacturers an excuse to charge more for a PC, and here it is!

No doubt XP2 will require a 4ghz cpu, 2 gigs of this new ram, different coloured motherboard, maybe firewire2, superDUPER ata 9 million IDE etc etc...

I`m stopping at my current machine. Linux presumably doesnt need all this crap to do the same stuff its done up until now without it. What do we need more power for anyway? Games? Is that it? What other aspect of PC`s needs accelerating now? I thought the weak link was internet bandwidth?

Re:Phew! (0)

Anonymous Coward | more than 12 years ago | (#3591322)

I`m stopping at my current machine.

` is NOT an apostrophe! Nor is it a single quote mark. It's a diacritical accent.

Of course ' is not an apostrophe either, but it's as close as we get on the web...

Back to the subject, some people do need speed, such as for audio and video editing.

Hmmm..... (-1, Offtopic)

Anonymous Coward | more than 12 years ago | (#3591109)

....Now I finally have a reason to upgrade!

Oh who fucking cares (0)

Anonymous Coward | more than 12 years ago | (#3591110)

They both suck.

DDR?? (1, Funny)

Dr Kool, PhD (173800) | more than 12 years ago | (#3591111)

What does Dance Dance Revolution have to to with SDRAM??

Why is VA Software trying to suppress the truth? (-1, Offtopic)

hettb (569863) | more than 12 years ago | (#3591113)

I submitted this article to Slashdot, but it got rejected. Why?

ESR Resigns from VA Board of Directors -- VA Software Corp. (NASDAQ: LNUX [yahoo.com] ) has silently severed [linuxtoday.com] its ties with board member Eric S. Raymond [tuxedo.org] , among others. No mention of this was made on any of VA Software's OSDN news sites.

Raymond, who was responsible for "[representing] the interests and values of the open source community [archive.org] ", confirms his recent change of status [tuxedo.org] on his homepage.

Re:Why is VA Software trying to suppress the truth (0)

Anonymous Coward | more than 12 years ago | (#3591796)

Here is a hint, it is the same reason catholic priests are getting kicked out

Sure, it's faster... (1, Informative)

Anonymous Coward | more than 12 years ago | (#3591114)

but why would anyone want to shell out for an RDRAM/P4 system? You can get an Athlon for much cheaper, and load up on DDR memory. It may not be quite as fast as the Intel system, or play a fancy tune in some commercials, but it'll get the job done for a lot less, in most cases.

Re:Sure, it's faster... (1)

s10god (409764) | more than 12 years ago | (#3591199)

Once again, AMD is a better bang for your buck...

Re:Sure, it's faster... (0)

Anonymous Coward | more than 12 years ago | (#3591597)

Yeah 'bang' is one way to put it. As long as AMD relies on shitty motherboard chipset manufacturers to support their products (VIA), intel is still the way to go for me. Want further proof? Go read any (and I mean any) hardware tech forum, and 90% of the msgs are from people who 'got the best bang for their buck' and are now whining about how this or that video card/soundcard/PCI device is screwing up their machine. This is usually followed by a tirade against said company for not 'supporting' their system. Of course, if AMD/VIA would follow the basic standards for PCI/memory/cpu interfaces at little more closely, said device WOULD probably work just fine. Instead, people are expecting OEMs to support 'broken' hardware. I don't think people realize how many hacks are present in nvidia's drivers just to get them working with VIA's AGP. VIA boards also can't even get PCI streaming working right.

Ugh, I miss the days when AMD chips were a drop-in replacement on intel boards. I understand why they no longer do that, but it still sucks. I also wish these hardware sites would stop giving glowing reviews to all of these shitty motherboards. Hopefully Opteron's support from AMD will be better. I'd like to see some other chipsets from them besides the 76xMP as well.

Re:Sure, it's faster... (2)

Toraz Chryx (467835) | more than 12 years ago | (#3591626)

VIA chipsets do suck, so don't use one.

Nvidia's Nforce is looking good and solid, I haven't heard a single horror story about it infact.

SiS 735/745 lines are nice, cheap, pretty fast, and they work.

It's completely possible to build a fast athlon system without even having to look at a VIA chipset. so please, stop using VIA as an excuse to bash AMD.

Re:Sure, it's faster... (0)

Anonymous Coward | more than 12 years ago | (#3591726)

Sorry, just that I am sick of having to support these POS machines when they simply don't work right. Also, if those other chipsets you mention were truely 'better', most people would be using them. People pick VIA boards because they bench a lot faster than most of the SIS and nvidia based ones (at least they seem to on the hardware sites).

The Athlon is a great chip, but AMD's refusal to create a complete solution for it aggrivates me.

Re:Sure, it's faster... (1)

packeteer (566398) | more than 12 years ago | (#3591966)

personally i use the K7S5A mobo... its uses the sis735 chipset so its not bad... you can find one for around $40 which is incredible considering you get onboard sound, onboard 10/100network, ddr & sdram slots, athlon/athlonXP/duron motherboard...

i know that this isn't the 'fastest' mobo out there but its VERY good if you want to set up a cluster... think of it...

so dont use VIA if you like it... get an Nforce if you got the money or a sis735/745 if your on a budget...

How much of difference (0)

Anonymous Coward | more than 12 years ago | (#3591118)

Is it really worth that hefty extra price tag to the end user? Perhaps for a network, but a preformance increase would be only slightly noticable to a person.

Intel and RAMBUS (0)

Anonymous Coward | more than 12 years ago | (#3591124)

I'm confused... Intel has all but denounced future support for RAMBUS, yet they continue to make chipsets that work with the latest and greatest. When (if ever) are we going to see a complete serparation?

Bzzzt! (5, Informative)

popular (301484) | more than 12 years ago | (#3591127)

Intel's i850 does not support PC1066 officially, and parts of that speed have only been validated since the release of i850E. Officially, the chipset simply supports a FSB that would complement that speed, if the two busses ran synchronously. Seen here:
http://www.theinquirer.net/24050203.htm [theinquirer.net]

That said, PC1066 has been tested before (can't find the article at Ace's Hardware), and the bandwidth of DRDRAM appears to compensate quite nicely for the P4's generally lousy architecture, as does its increased cache size (now 512k L2).

Re:Bzzzt! (0)

Anonymous Coward | more than 12 years ago | (#3591274)

Care to explain what's lousy about the architecture, or do you even know?

Re:Bzzzt! (2)

Toraz Chryx (467835) | more than 12 years ago | (#3591641)

Well, we can start with it's pitiful excuse for an x87 floating point unit....

Re:Bzzzt! (0)

Anonymous Coward | more than 12 years ago | (#3591839)

You mean the floating point unit they made bad, intentionally, to inform cluebies such as yourself that its days are numbered? The same unit that even in the Athlon or the P3, is less efficient than using 3DNow!+ and SSE on single elements for the same precision?

It's time to dump the baggage, and while you're at it, buy a clue.

P.S. I own an three AMD Athlon-based computers, so I'm not sucking Intel's dick out of zealotry.

Re:Bzzzt! (1)

JebusIsLord (566856) | more than 12 years ago | (#3591361)

Yes, what exactly is lousy about the P4 architecture? Don't tell me it is lousy because of the performance / clock cycle ratio, because the chips clearly make up for that in their clock speed. The fact is, as overpriced as they are, the top-of-the-line P4 is king of the x86 performance arena right now. That doesn't happen to lousy architectures. p.s. I own an Athlon.

Re:Bzzzt! (-1)

cmdr_shithead (527909) | more than 12 years ago | (#3591377)

This post is for peace!!! No More War!

Re:Bzzzt! (0)

Anonymous Coward | more than 12 years ago | (#3591379)

Until AMD or Intel produces a CPU that runs on a 166MHz or 200MHz data bus, the benefits from anything faster than PC2100 are going to be sorely missed on any DDR based platform.

For anyone that doesn't want to be misled by this article. AMD has a max of 266mhz and intel has a max of 533mhz (133mhz ddr and 133mhz qdr) In fact I can't think of anything that runs on a 166Mhz bus. Someone may want to let the 'technical' writer know.

Re:Bzzzt! (0)

Anonymous Coward | more than 12 years ago | (#3591862)

My XP currently runs 166/166. The DDR/QDR terms don't change the clock speed of the bus any.

And the technical writer is correct, 133/166 is marginally better to worse. So until official support for 166MHz FSB is supported, there won't be any mainstream use for anything faster than CL2 PC2100.

Evaluate the Pentium IV design at 6 GHz. (2, Troll)

Futurepower(R) (558542) | more than 12 years ago | (#3591456)


I talked about the architecture of the Pentium IV with two of the architects. (In Portland, Oregon, it is sometimes possible to meet them at parties, and we have become friendly.) In perhaps 18 months, the speed of the P4 will reach 6 GHz. That's when you will be seeing more of the benefits of the design.

Remember the 1 GHz P4? That was a marketing push to try to counter AMD's competition, not something the engineers wanted. In many ways, it made the P4 look bad, because the P4 was not designed to run at 1 GHz. People still remember the poor 1 GHz benchmarks; those benchmarks have done lasting damage.

In my opinion, Intel's marketing is not technically skilled, and not skilled overall. (One of the engineers strongly agrees with this.) One of the tasks of the marketing people now should be showing people how the much faster processing speed can be used. Intel marketing, having little technical knowledge, cannot possibly do the job.

Also, Intel's management has foundered since Andy Grove got tired of running the company. The problem with poor management pre-dated his cancer. No matter what you do, if you do it for too long, it stops being exciting and becomes boring, and it becomes difficult to give it proper attention.

Re:Evaluate the Pentium IV design at 6 GHz. (2)

Lars T. (470328) | more than 12 years ago | (#3591961)

Don't you mean the 1GHz P 3 ?

Proprietary memory should be faster (2)

Anomolous Cow Herd (457746) | more than 12 years ago | (#3591132)

There's certainly something to be said for proprietary memory technology. Sure, it's expensive, and Rambus does all kinds of dishonest lawyer tricks with the patent system, but you probably won't find that level of integration between the processor and the memory on a standards-based SDRAM system. AMD now faces even more serious competition from Intel, who could bury them, performance-wise, with this kind of memory bandwidth.

I wonder how expensive a graphics card with RDRAM would be, or if it would be any faster?

Re:Proprietary memory should be faster (2)

morcheeba (260908) | more than 12 years ago | (#3591222)

it would cost $199 [rdram.com] or $99 [demon.co.uk]

Because of things like latency, it might be slower (1)

Svartalf (2997) | more than 12 years ago | (#3591231)

By rights, if you accept the higher bandwidth present with RDRAM, it should be doing dramatically better than DDR SDRAM. It's not. This is because it takes longer for the RDRAM to respond when it's accessed. If you're doing large blocks of things in memory, you might see an advantage. I say might because modern CPUs don't do as well with large blocks of data (stuff pops out of cache, etc.) so any advantage there is masked at least partly by cache misses, etc. The same goes for display chips for differing reasons- display chips access memory VERY regularly and very often. The latencies present in RDRAM might be too much.

Re:Proprietary memory should be faster (1)

dusanv (256645) | more than 12 years ago | (#3591258)

OK, that's crap. Ask Nvidia & ATI! They need every little bit of bandwidth they can get on their video cards and they still use DDR. I am sure Rambus Inc would love to see RDRAM on GeForce5 but it ain't gonna happen. DDR is superior. It has lower latency and the bandwidth difference between it and RDRAM can be easliy fixed by cranking up the clock and interleaving.

Lastly, the practices of Rambus Inc make me not touch their RAM with a 10 ft pole but that's besides the point.

D.

Re:Proprietary memory should be faster (1)

Courageous (228506) | more than 12 years ago | (#3591636)

AMD now faces even more serious competition from Intel, who could bury them, performance-wise, with this kind of memory bandwidth.

That was the original promise of RDRAM, but turned out that where the rubber meets the road, latency will win this particular drag race with most people. I suspect this will slowly change as programmers start to make more resource-hungry applications that address very large regions of memory. But by the time that changes, all the AMD systems will be Hypertransport-backed, yes? Speaking of Hypertransport, it appears to me that the Hypertransport alliance is winning the bandwidth game in terms of adoptees and so forth. This has been one of AMD's better moves.

C//

Its not worth it! (1, Redundant)

fabiolrs (536338) | more than 12 years ago | (#3591134)

Ok, the diference is not THAT large... knowing that this memory is much more expensive, Id rather have a system with 3gb DDR that is slight slower (but we know atlhons are in many cases faster) than one with 512mb of this "state-of-the-art" chip...

Re:Its not worth it! (0)

Anonymous Coward | more than 12 years ago | (#3591233)

Sumare/Sao Paulo/Brazil/South America/Earth/Solar System/Milky Way/4-D-A Quadrant/Universe

Isn't your sig the wrong way around?

Re:Its not worth it! (1)

fabiolrs (536338) | more than 12 years ago | (#3591280)

na... thats just a poor man GPS... :))

Oi! (0)

Anonymous Coward | more than 12 years ago | (#3591555)


Oi, Brasileiro!

Re:Oi! (0)

Anonymous Coward | more than 12 years ago | (#3591731)

ô belezura... :))

Great benches but.... (3, Informative)

gamorck (151734) | more than 12 years ago | (#3591135)

Why didn't they show us any Quake III comparison benches? We all know that at lower resolutions the processor drives Quake III and that its extremely sensitive to memory bandwith capabilities. Anyway it appears that RDRAM 1066 is a definite improvement over RDRAM 800. Its good to see that Intel is still continually raising the bar.

Also I believe there were some initial benches (better ones) on http://www.tomshardware.com

J

PC1066 supported? (3, Insightful)

pacc (163090) | more than 12 years ago | (#3591151)

The right way around would be to report that there now are PC1066 RAM available that supports the I850E platform.

Apparently the chipset is just an overclocked variant of the earlier variant and could not use the slowest version of the PC1066 standard memory. Ironically the only version available when 850E was launched.

www.theinquirer.net, wish they had a better back-catalogue

Hype (1, Troll)

rmarll (161697) | more than 12 years ago | (#3591154)

Good god. Most of those benchmarks showed little or no performance benefit. Some even had a small(insignificant) decrease compared to the other platforms.

The reviewer was sure jazzed about that .1-1% increase though.

Really damn excited...

Re:Hype (2, Informative)

Frogg (27033) | more than 12 years ago | (#3591490)

Most of those benchmarks showed little or no performance benefit.

The article is about PC1066, a new kind of memory. The memory specific benchmarks do show quite a big performance increase!! (see the last three graphs on this page [tweakers.com.au] of the article)

The fact that the other graphs show little or no performance difference I think is quite likely due to the fact that the tests employed have different kinds of bottlenecks due to system limitations -- limitations other than memory bandwidth.

You might get similar results if you tested a new sound card (for example) that had faster hardware acceleration -- sure, the Quake III benchmark would only show a small difference, but another test that made more significant usage of the sound card (a test in Cubase for example) would show a greater performance increase. (Umm, I know it's not a great example, but I'm hope you get what I mean!).

who cares (0)

Anonymous Coward | more than 12 years ago | (#3591160)

buy what's cheap. It makes financial sense.

Time to remember... (-1, Offtopic)

Dr Kool, PhD (173800) | more than 12 years ago | (#3591161)

Today is Memorial Day, and it's time to remember all the sacrifices and hardships that people have gone through to preserve our freedom. We owe our past and present military personnel a debt that can never be repayed. These people are willing to take a bullet so that you can continue your way of life. This is the definition of heroism.

It saddens me when I see trolls on slashdot abusing that freedom. Thousands of heros gave their lives on September 11th so you can all run around posting links to goat sex internet pages?? All you trolls need to take a look in the mirror and ask yourselves: Am I paying propper service to these heros with my actions??

I belive the root of the problem lies in the fact that the generation coming into adulthood right now has never had to make any sacrifices. My generation fought in the Vietnam War, and the generation before fought in WWII. But this generation's idea of sacrifice is giving their girlfriend oral sex. In order to remedy this situation I think the draft should be reinstated right away. Let these youngsters learn how to sacrifice and risk their lives, so that when they come back they can be better citizens. Many people think that sacrifice is not necessary today. These people are just like terrorists, they want to destroy the fabric of America. Do not let them. Do not forget that people died for you.

percentages (1)

EricV314a (581711) | more than 12 years ago | (#3591163)

I dont really know much about memory, but from the test results shown, the percentage of performance increase seemed to be almost trivial on the multimedia test. would this really help my browser render pages faster or increase the frame rate of my dvds?

PC1066 RDRAM vs. DDR SDRAM (-1, Redundant)

Anonymous Coward | more than 12 years ago | (#3591165)

Introduction

Memory performance is becoming a key concern of computing system designers across many market segments. From PC applications surrounding multimedia (gaming, streaming media and video/photo editing) to networking systems routing hundreds of gigabytes per second of packets, high-performance memory systems are a must. Most people would know that the memory bandwidth on modern video cards is crucial to performance levels in Direct3D and OpenGL, and overclocking the memory will guarantee an overall boost 100% of the time. Essentially, main system memory goes by the same rule, and is often overlooked in most cases. SDRAM and DDR SDRAM are the most common types of memory used in personal computers across the globe, and offers fairly good performance as well as being very cost effective. RDRAM is another option, originally brought to power with the original Pentium 4, but dumped for DDR to satisfy the low to midrange market.

RDRAM is considerably more expensive that DDR SDRAM, and up until now the 100MHz PC800 specification didn't do well in comparison. Just recently 133MHz PC1066 was launched, and is now officially supported by the new Intel P4 and the Intel 850E core logic chipset, but this time promises to bring memory performance to the next level. Lets find out...

SDRAM and DDR

SDRAM and DDR SDRAM, being close cousins in architecture, share many of the same features and characteristics. An SDRAM or DDR SDRAM memory system is constructed out of multiple devices working in parallel on a wide data bus to answer a memory request. Lines are conserved on the command (address) bus by multiplexing or sharing the lines to transmit row and column addresses, or the information that locates a specific memory item in the 2-dimensional memory core array. DDR attempts to theoretically double performance of the memory system by applying double data rate technology to send data on each edge of the clock signal in theory, doubling the data output of a device while not increasing it's clock frequency in MHz. Currently DDR memory modules run on a data bus of 133MHz (PC2100 or DDR266) and 166MHz (PC2700 or DDR333). PC2100 and PC2700 refers to the 2.1GB/s and 2.7GB/s of memory bandwidth that each memory channel is theoretically capable of, although current AMD and Intel processors only run on a 133MHz data bus.

What is RDRAM?

RDRAM architecture takes a different approach from SDRAM. Rather than using a matrix topology with wide buses for data and shared buses for command information, narrow high-speed buses are used with an emphasis on making the electrical subsystem balanced and resilient, enabling high frequency operation by design. A single channel of RDRAM memory can fully service a data request out of a single device. A 16-bit data bus runs at a 400/533MHz clock frequency and sends data on both clock edges to deliver 1.6GB/s (PC800) and 2.1GB/s (PC1066) of memory bandwidth. Since lines are conserved on the data bus, the command bus can use separate lines for row and column address information to ensure the command bus can keep up with the abilities of the data bus. Up to 32 divides can be connected together in one RDRAM Channel to allow memory footprint expansion. Devices can be attached to the same PCB as the memory controller or put on modules very similar to SDRAM DIMMs.

Currently RDRAM memory modules run on a data bus of 100MHz (PC800) and 133MHz (PC1066). Up to 1.6GB/s of memory bandwidth per channel can be delivered by PC800 RDRAM on a 100MHz data bus, while the new breed of P4s run on a 133MHz (133MHz*4=533MHz) data bus, delivering up to 2.1GB/s per channel with PC1066 RDRAM. The P4 can make use of the full 2.1GB/s because it runs on the same data bus PC1066 is designed for, using a far superior memory technology in contrast to DDR SDRAM.

Testing

I used the Iwill [iwill.net] P4R533-N motherboard based on the Intel 850E chipset to benchmark both the PC1066 and PC800 RDRAM, and the SOYO P4I Fire Dragon based on the Intel 845D chipset for benchmarking the DDR memory. SiSoft Sandra was used to measure CPU, CPU/multimedia and memory bandwidth, MemTach 0.93a was also used to measure memory bandwidth, and MadOnion's 3DMark 2001 SE was used to measure real-world multimedia performance. Direct 3D/OpenGL vertical sync and audio was turned off in all multimedia tests, and assume 'higher is better' for all benchmarks unless stated otherwise.

Test System

Processor: - Intel Pentium 4 (533) 2.4GHz
Motherboard: - Iwill P4R533-N (i850E)
- SOYO P4I Fire Dragon (i845D)
Memory: - Samsung 2x128MB PC1066 RDRAM
- Samsung 2x128MB PC800 RDRAM
- Apacer 256MB PC2100 DDR266 DIMM
Storage: - Maxtor 20GB ATA133 7200RPM
Graphics: - PixelView GeForce4 Ti4600 128MB
Sound: - Disabled
Software: - Windows XP Professional
- Intel Chipset INF Driver
- NVIDIA 28.32 Detonator XP Drivers
- SiSoft Sandra 2002
- MemTach 0.93a
- 3DMark 2001SE


Effective Bandwidth

Effective bandwidth is just what the name suggests - it looks beyond subtle specs and gets a handle on what real world performance expectations should derive from a memory technology. As you will see from the graphs below, the PC1066 based system thrashes the DDR and PC800 by an exceptional margin in the memory bandwidth tests, but is pretty much on par with the others throughout the SiSoft CPU and Multimedia tests, although that is not really what we're really looking at here. The PC2100 DDR also proved to be strong up against the PC800, which came in dead last overall.

Multimedia Performance

Bandwidth is one thing, but multimedia performance is another, and is a direct indication if all that extra bandwidth is going to good use. I decided that MadOnion's 3DMark 2001 SE would be sufficient for the evaluation, since it offers an all round performance benchmark of the graphics subsystem - the most demanding device in the average PC. As you can see from the results, the PC1066 based system excels with nearly 500 additional 3D Marks over both the PC2100 DDR and PC800 RDRAM platforms.

Conclusion

It is quite evident from the benchmarks shown in this article that PC1066 RDRAM teamed with the Intel 850E chipset is currently the fastest, most superior and effective combination available for achieving the highest possible memory bandwidth. Intel started off in the right direction with the initial RDRAM support for their original line of Pentium 4s, but would have suffered in the long run if they didn't make the switch to DDR just in time to keep face with the growing demand, pressures, and competition from AMD. Until AMD or Intel produces a CPU that runs on a 166MHz or 200MHz data bus, the benefits from anything faster than PC2100 are going to be sorely missed on any DDR based platform. Intel has once again secured their piece of the pie in the high-performance arena with their 850E chipset, the new variety of Pentium 4, and their true support for PC1066 RDRAM. If your tossing up between DDR and RDRAM for your next upgrade, then PC1066 is definitely worth considering if you seek nothing more than pure muscle alongside the '533' Pentium 4.

DDR is out (-1, Flamebait)

Anonymous Coward | more than 12 years ago | (#3591170)

I don't want me none of that Commie East German technology in my pee-cee.

~~~

Re:DDR is out (-1)

hettb (569863) | more than 12 years ago | (#3591215)

stfu, NAZI!

Still haven't answered the million $ question (0)

Anonymous Coward | more than 12 years ago | (#3591174)

that is, does the quad pumped 133mhz bus actually run the memory through it as well... if thats the case then the rdrram is running at its optimum of 533mhz?... am i right or totally of the mark? :-)

Compared to mortal ram? (1)

mkoz (323688) | more than 12 years ago | (#3591184)

So maybe I am an idiot, but does anyone know (i.e, have figures) that relate these to the memory types commonly in systems people actually have... (SDRAM).

For example... apple is moving from of PC133 SDRAM (current G4 systems) to PC2100 DDR SDRAM, what does this actually mean to an actual user?

MAK

DDR SDRAM (0)

Anonymous Coward | more than 12 years ago | (#3591446)

DDR (double data rate) SDRAM is similar to your old ordinary (SDR) SDRAM, except that data is transferred on the positive edge and negative edge of the clock. So, from a simplistic point of view, DDR SDRAM will have 2x the bandwidth of SDR SDRAM at the same clock speed.

This is completely off the top of my head, but I BELIEVE that SDRAM transfers 64 bits in one go. Thus, a 133MHz SDR SDRAM (the 133 in PC133 means 133MHz clock frequency) module will transfer about 133MHz * 8byte/clock = 1064MB/s. A 133Mhz DDR SDRAM module, OTOH, will transfer twice that, or about 2128MB/s (the 2100 in PC2100 means 2100MB/s).

RAMBUS is a different beast altogether. It runs at insane clock speeds (1066MHz apparently) but has a very narrow data path. Again, of the top of my head, I believe it transfers 16 bits of data in one go. Thus, a 1066MHz RIMM will be able to transfer about 1066 * 2byte/clock = 2132MB/s.

So, 2128MB/s vs 2132MB/s for theoretical max transfer rates between PC2100 SDRAM and 1016 RDRAM. Pretty tight race. The real world is always different from theory, though, which is why people run benchmarks like this :).

As was mentioned in other posts, it really is unfair to compare 1066MHz RDRAM vs. PC2100 DDR SDRAM because PC2100 is like totally last generation.

So there you go. DDR is about twice as fast as your old ordinary SDR SDRAM. RDRAM, though a completely different technology, will probably always be in the same ballpark as DDR.

Re:DDR SDRAM (1)

TonyMillion (545370) | more than 12 years ago | (#3591924)

you missed out the part where you need two RIMM's because of its dual channel architecture. therefore you should multiply all your RDRam figures by 2.

The fix is in. (4, Insightful)

blair1q (305137) | more than 12 years ago | (#3591193)

What a bogus comparison.

PC2100 is old news, and 1066 RDRAM is just being released.

The proper comparison would have been against PC3200, or PC2700 at least.

N.B., I've been using PC2700 in my machine for two months. PC3200 is about 33% more expensive [priceindexes.com] .

--Blair

First Post! (-1, Offtopic)

Anonymous Coward | more than 12 years ago | (#3591196)

Sie sind äußer, Geländearbeit an einem heißen Sommertag erledigend. It?s, das für diese Scheiße, aber zu heiß sind, Sie möchten sie erhalten heute getan, also können Sie frei morgen sein aller Tag. Ich stoppe durch das Haus unerwartet und Sie laden mich ein, Sie für ein Bier zu verbinden und zu fragen, ob ich mich kümmern würde, mit Ihnen heraus zurück zu sitzen - Sie sind zu schmutzig, nach innen zu sitzen. So verbinde ich Sie heraus rückseitig und wir werfen eine Decke unten über dem frischen Schnittgras und ergreifen Biere eines Paares.

Ende des zweiten Bieres verliere ich Schiene des Gespräches und passe gerade den Schweiß auf, von Ihrem Ansatz zum waistband Ihrer Schnittoffs unten zu rollen. Sie sind total in das Erklären mir über den Rest Ihrer landschaftlich versch50nernpläne, bis Sie bis zum Zupacken mich ein anderes Bier aus der Kühlvorrichtung heraus rollen, und beachten, daß meine Augen auf Ihren Abkürzungen sind.

Sie lachen es weg, aber ich kann sehen, daß der Gedanke von mir Sie aufpassend Ihren Hahn schwellen läßt. Sie übergeben mir mein Bier mit einer Anmerkung über, wie heiß sie ist. Jetzt ich seiend ich, kann ich nicht Sie, weg abzukühlen widerstehen und ich nehme eine lange Gegenkraft auf dem Bier, bevor ich Over lehne und die Bierflasche hinunter das Innere Ihres Schenkels schleppe. Sie springen so schnell in Überraschung, daß Sie herauf das Entleeren von Hälfte Ihrer Bier hinunter meinen Kasten fertigwerden und jetzt wir beide weg abgekühlt erhalten haben. Dieses sendet uns in gales des Gelächters. Aber unsere Augen lachen nicht; Ihr boner kriecht praktisch aus der Unterseite Ihrer Abkürzungen und meine Nippel sind sie schmerzen so hart.

Ihre Augen bleiben versessen auf meinen, während Sie sich innen lehnen und mein Haar lose des Ponyendstückhalters ziehen, der mein Haar hinunter, zu stolpern läßt ganz über meinen Schultern und zurück. Sie zeichnen Fasern eines Paares durch Ihre Finger... und ziehen dann auf eine der Fasern, die innen mich für einen Kuß zeichnen. Meine Hände kommen oben gegen Ihren Kasten für Abgleichung, und Gefühl Sie ganz verschwitzt, lasse ich gerade ' EM-Dia unten zu Ihrem waistband und um Ihre Rückseite. Ihre Lippen betätigen sich leicht zu meinen, und Ihre Zunge findet meine und Anschläge.

Wie ein Magnet wird mein Haar zu Ihren verschwitzten Schultern und zu Kasten gezeichnet, und wir bilden eine vollständige neue Art von der Hitze. Sie drücken mich niederwerfen auf die Decke und folgen mir unten. Ihr Kuß dreht sich stark, leidenschaftlicher und Ihre Hüften schaukeln mit dem Rhythmus Ihrer Zunge. Sie ziehen auf die Zeichenketten meiner Bikinioberseite und küssen meinen Ansatz bis meine rückseitigen Bögen mit meinem Ächzen. Sie erreichen schnell darunter und ziehen die unterere Zeichenkette lose auch. Meinen meinen Ansatz, über meinen Schultern schnell unten küssend, lecken Sie das Bier weg von meinem Kasten. Entschuldigend in einem Flüstern für das Erhalten mein oberes nasses, lecken Sie das Bier weg von meinen Nippeln an den Spitzen.

Meine rückseitigen Bögen und ich whisper, daß mehr als meine Oberseite naß ist. Sie belohnen mich, indem Sie süß Ihre Zunge gegen die Nippel wirbeln, bis sie an der Aufmerksamkeit stehen und um mehr bitten. Meine Hüften wölben sich und ich ächze Ihren Namen. Jetzt hatte ich vergessen, wo wir sind, aber als Sie Zug des Hebers bis meine Kurzschlüsse weg von Ihnen beachten, daß Ihr Nachbar heraus in seinem Gelände mit seinen Augen auf uns sich verriegelte (und seiner Hand, die seinen Rasenschlauch hebt). Sie sinken zurück niederwerfen und küssen mich fest und informieren mich genau, wieviel Sie mich wünschen. Dann whisper Sie, daß Ihr Nachbar aufpaßt, und fragen mich, ob wir mit zum Innere oder herausgehen. Ich lache leicht und whisper, daß ich Wille mit innerem und Ihnen mit Ihnen gleichgültig wo wünschen kann. Mich küssend, fest wieder rollen Sie etwas zur Seite und zum Sagen?Take ein Blick?.

Spähen über Ihre Schulter sehe ich Herrn Middle Amerika, mitten in seinem Rasen dumbly zu stehen. Ich ziehe schnell zurück und küsse Sie leidenschaftlich, bis Sie vergessen hatten, daß er dort ist und für meine Kurzschlüsse wieder erreicht. Nicht imstande, meiner playful Stimmung zu widerstehen, scream ich?Ooooohgott, Baby, ohh bilde mich ja mit!? und dann springen Sie weg von der Decke und ergreifen Sie meine Oberseite und laufen Sie in das Haus. Sie verfluchen und beginnen, mich nachzulaufen und verfangen sich mich gerade innerhalb des Hauskeuchen?You?re, das nicht von einfachem dem? weggeht. nicht, Planung I?m auf dem Langweilen weg Ihr sehr hartes, sehr langes Hahnbaby? und ich ergreife Sie und küsse Sie mit meiner Zunge den Anschlag und den Rhythmus genau simulierend, die ich Sie mich mit mit bilden wünsche.

Sie lassen mich die Leitung nehmen und ich erreiche unten und höhle fest Ihren Hahn, bevor ich meine Fingerentdeckung Ihr Reißverschluß lasse. Meine Zeit dauernd, befreie ich Sie und höre auf Sie Ächzen Ihre Anerkennung, während Sie sich zurück am Küchekostenzähler lehnen und Ihren Kopf zurück fallenlassen. Ihr Schnittoffston loud, wie sie den Fußboden schlugen, aber nicht so loud wie Ihre Atmung. Ich versenke langsam Ihren warmen verschwitzten Hahn in meiner Öffnung und höre auf die Verriegelung in Ihrer Atmung. Als sicher genug, beginnt Ihre Atemhalte und dann mit einem whoosh Unterstützung wieder, louder und rauher einem Moment vor. Sie verbreitern Ihre Position und geben mir viel des Raumes, Ihren Hahn zu lecken und zu saugen. Meine Zunge badet Sie und ich ächze meine Anerkennung Ihres Geschmacks. Ich sauge Sie tief und streiche fest mit meiner Hand an der Unterseite und lasse meine Fingermühelosigkeit unter Ihren Kugeln und Anschlag hinter ihnen. Ich glaube, daß Ihre Beine Tempus und Sie loud ächzen Sie und heraus erreichen Sie und meinen Kopf und Haar streichen Sie und anfangen Sie, zu mir whispering. Über und über erklären Sie mir, wie gut sie glaubt, wie heiß und glatt meine Zunge ist, wie schlecht Sie mich wünschen, wie schön ich bin, wie stark Sie sind.

Mit jedem Wort bin ich geweckt und ächze und keuche um Ihren Hahn. Mein Ächzen und das Keuchen fährt Sie verrückt und Sie ziehen mich für einen anderen torridkuß, unsere Lippen und die Zungen, die wild verbinden hoch. Sie don?tstörung mit meinem Reißverschluß, Ihre Hand hinunter das Innere meiner Kurzschlüsse gerade laufen lassend und finden meine Bikiniunterseiten. Verfluchend ziehen Sie Ihr austeilen und erreichen mit den Händen für meine Taste und Reißverschluß und drücken dann die Kurzschlüsse und die Bikiniunterseiten weg sofort und schieben Ihr Handrecht in meinen furry Damm. Sie vergeuden keine Zeit und sinken einen Finger tief innerhalb ich, nie lassend gehen Sie von meiner Öffnung und von Zunge. Ich ächze und schmelze gegen Sie, mein gehender Durchhang der Öffnung, nicht imstande, allem ausgenommen Ihre Hand zu glauben. Schnell setzen Sie einen anderen Finger ein und bürsten gleichzeitig mein clit mit Ihrer Palme und ich shudder und drücke Ihre Finger mit meinen Liebemuskeln zusammen.

Ich schleppe meine Lippen herauf Ihren Ansatz zu Ihrem Ohr und zu kurzen Hose und whisper in Ihrem Ohr?now, jetzt!? Keuchen und Schmelzen auf Ihren Fingern. kein Baby? Sie whisper zurück und streichen Ihre Finger in und aus mir und dann verbreiten meine Säfte über meinem clit. Umdrehung zum Necken Sie Baby? Sie grinsen, während Sie Ihre Hand wegnehmen und mich abholen und mich auf den Küchekostenzähler schieben. Ihre Beine und I?ll bilden Sie mit? Sie erklären mir. Plötzlich fühle ich geöffnet und herausgestellt, bis ich beachte, daß irgendwo entlang der Weise Sie Ihre Hosen unzipped und langsam Ihren Hahn hebe. Sein Felsen stark und meine ganze Aufmerksamkeit wird auf ihm zentriert. Wenn Sie mageres nahes und verbritten meinen Beinen, meine Schenkel wie geschmolzene Butter zerteilen. Ich lehne mich zurück auf meinen Händen und lasse meine Haupttropfenrückseite, bis mein Haar das obere Gegen?Ohhhh ja bürstet, einen was süssen saftigen Pussy, den Sie Baby haben? Sie ächzen. Sie wirbeln Ihre Zunge entlang meinem clit und unten in mein jetzt sopping aufgeschlitzt. Der Ton Ihrer rauhen und unbeaufsichtigten Stimme so ist wie Blitz in meiner Seele. Sie nehmen Nachricht, daß ich sofort einen Rollendialog zu pausieren, um Ihre Zunge auf meinem clit nur zu schlagen mich straffe und shiver, wenn Sie sprechen, und anfange. Sie schieben Ihre Finger in den Kreisen um meinen Schlitz und nicht innen, gerade herum und herum schieben sie.

?Yes, I?m, das geht, Ihren süssen Pussy mit Baby, wissen Sie zu bilden, daß ich bin. Ich möchte diesem hübschen Pussy glauben, alle über meinem Hahnbaby festzuziehen?. Ich keuche und schließe meine Augen, das Sinken tiefer in die Elektrizität Ihr Verursachen. Sie saugen auf meinem clit und fahren fort, meinen Schlitz zu necken, bis ich, daß i-can?teinfluß zurück jedes längere?I auf Ihren Hahn kommen möchten, pleeeeeasebaby? ächze. Sie schieben mich sofort weg vom Kostenzähler und ich wickele meine Beine um Ihre Taille auf und fange an, Sie zu küssen mag morgen doesn?t bestehe. Sie drücken mich gegen die kalte refridgeratortür und spalten mich geöffnet mit Ihrem Hahn auf. Ich shudder und fange sofort an, von der Kälte auf meiner Rückseite und der Hitze in meinem Schlitz cumming. Mein Pussy milk Ihren Hahn stark, bis Sie zu mit auch beginnen. Er glaubt wie ein, das sehr lang ist, sehr naß mit. Can?t I erklären, wo Grube stoppt und Ihre anfängt. Plötzlich gibt es lauten Silence, da das refridgerator kurzzeitig laufend pausiert. gehen schlafen? Sie whisper. über den Rasen?? Ich erkundige mich und Sie lachen und erklären mir there?s nichts nach links, um einem Busch zu tun aber zu kümmern, während Ihre Hand meinen furry Damm wieder streicht

5% is "Thrashing"? (2, Interesting)

jigokukoinu (549392) | more than 12 years ago | (#3591213)

Of all the tests done between these two, about a 5% improve was the most that the PC1066 had. How exactly does about a 5% improve justify the (previously true, now perhaps perceived) significant increase in price?

It ALMOST sounds like someone *COUGHRDRAMMAKERSCOUGH* was "supporting" the writer of that article, their adjectives were too strong for the data.

-Jeremiah

Re:5% is "Thrashing"? (2)

VAXman (96870) | more than 12 years ago | (#3591312)

Considering people buy Sun Workstations, which (vs. a Pentium 4 workstation) give you a -50% speedup for a 500% markup, it seems that RDRAM, which gives about 5% speedup for 25% extra cost, is quite well worth it.

Re:5% is "Thrashing"? (1)

Admiral Llama (2826) | more than 12 years ago | (#3591837)

Whoa....

CRACKPIPE ALERT!!!!!!!!!

Since when are Suns faster than a garden variety X86 box at 1/6th the price? Provided you don't need more than 4 procs and what, 16 gigs of ram, a Sun's price is not justified. Yeah additional X86s don't scale like the what, 93% boost you get from doubling a crowd of Sparc.... BUT there's not much you can do with a 16 proc box that shouldn't be able to be handled on a 4 quads.

Not much....

Re:5% is "Thrashing"? (0)

Anonymous Coward | more than 12 years ago | (#3591335)

My sentiments exactly. I was disgusted that he would recommend the newest and possibly most expensive option for such a small fraction of a speed increase. How stupid. Hey! I just figured out a way to use punch cards to outperform my AMD Athlon 900 mhz by almost 5% in some cases!!! woohoo! only problem is the noise, but you don't need to worry about that... just buy my new system that's totally incompatible with everything else you have and costs more for the slight speed increase! :-)

Premier Commentair! (-1, Offtopic)

Anonymous Coward | more than 12 years ago | (#3591218)

Vous êtes extérieur effectuant le travail de yard un jour chaud d'été. It?s trop chaud pour cette merde, mais vous veulent l'obtenir faite aujourd'hui ainsi vous pouvez être libre toute la journée demain. Je m'arrête par la maison inopinément et vous m'invitez à vous joindre pour une bière et à demander si je m'occuperais de m'asseoir dehors en arrière avec vous - vous êtes trop sale pour vous asseoir à l'intérieur. Ainsi je vous joins dehors arrière et nous jetons une couverture vers le bas au-dessus de l'herbe fraîche de coupe et saisissons des bières d'un couple.

Vers la fin de la deuxième bière, je perds la voie de la conversation et observe juste la sueur rouler de votre cou vers le bas au waistband de vos offs de coupe. Vous êtes totalement dans me dire au sujet du reste de vos plans d'aménagement jusqu'à ce que vous me rouliez jusqu'à l'encavateur une autre bière hors du refroidisseur, et notez que mes yeux sont sur vos coupures.

Vous le riez au loin, mais je puis voir que la pensée de moi vous observant fait votre robinet gonfler. Vous me remettez ma bière avec un commentaire au sujet de à quel point il chaud est. Maintenant, j'étant moi, je ne puis pas résister vous refroidir et je prends une longue drague sur la bière avant de se pencher l'excédent et traîner la bouteille à bière en bas de l'intérieur de votre cuisse. Vous sautez tellement rapidement dans la surprise que vous finissez vers le haut de vider la moitié de votre bière en bas de mon coffre et maintenant nous tous les deux avons obtenu refroidis. Ceci nous envoie dans des gales de rire. Mais nos yeux ne rient pas; votre boner rampe pratiquement hors du fond de vos coupures et mes mamelons sont si durs ils font mal.

Vos yeux restent attentivement sur le mien pendant que vous vous penchez dedans et tirez mes cheveux lâchement du support de queue de poney faisant mes cheveux pour dégringoler en bas partout de mes épaules et en arrière. Vous dessinez des rives d'un couple par vos doigts... et puis tirez sur un des rives me dessinant dedans pour un baiser. Mes mains sont soulevées contre votre coffre pour l'équilibre, et sentiment vous tou'en sueur, je laisse juste la 'glissière de fin de support vers le bas à votre waistband et autour de votre dos. Vos lèvres serrent doucement au mien, et votre langue trouve le mien et des courses.

Comme un aimant mes cheveux sont dessinés à vos épaules et coffre en sueur, et nous faisons une nouvelle sorte entière de la chaleur. Vous me poussez avalez sur la couverture et me suivez vers le bas. Votre baiser tourne plus dur, plus passionné et vos hanches basculent avec le rythme de votre langue. Vous tirez sur les cordes de mon dessus de bikini et embrassez mon cou jusqu'à mes voûtes arrières avec mon gémissement. Vous atteignez rapidement dessous et tirez la corde inférieure lâchement aussi. Embrassant mon rapidement vers le bas mon cou, à travers mes épaules vous léchez la bière outre de mon coffre. Faisant des excuses dans un chuchotement pour obtenir mon humide supérieur, vous léchez la bière outre de mes mamelons même aux bouts.

Mes voûtes et moi arrières chuchotons que plus que mon dessus est humide. Vous me récompensez en tourbillonnant gentiment votre langue contre les mamelons jusqu'à ce qu'ils se tiennent à l'attention et prient pour plus. Mes hanches arquent et je gémis votre nom. J'ai oublié à ce jour où nous sommes mais en tant que vous la traction d'ascenseur jusqu'à mes shorts outre de vous notent que votre voisin dehors en sa cour avec ses yeux a fermé sur nous (et sa main mettant sur cric son tuyau de pelouse). Vous descendez en arrière m'avalez et embrassez fermement, me faisant savoir exactement combien vous me voulez. Alors vous chuchotez que votre voisin observe, et me demandez si nous allons à cum l'intérieur ou dehors. Je ris doucement et chuchote que je volonté cum intérieur et vous puis cum là où vous vouloir. M'embrassant fermement encore vous roulez légèrement au côté et à la parole?Take un regard?.

Jeter un coup d'oeil au-dessus de votre épaule je vois M. Middle Amérique se tenir dumbly au milieu de sa pelouse. Je retire rapidement et vous embrasse passionément jusqu'à ce que vous ayez oublié qu'il est là, et atteint pour mes shorts encore. Incapable de résister à mon humeur espiègle, je crie Dieu de?Oooooh, bébé, ohh me fais oui cum!? et alors sautez outre de la couverture et saisissez mon dessus et courez dans la maison. Vous maudissez et commencez à courir après moi, m'attrapant juste à l'intérieur du?You?re de halètement de maison n'obtenant pas outre de celui facile?. pas, planification d'I?m sur ennuyer au loin votre bébé très dur et très long de robinet? et je vous saisis et vous embrasse avec ma langue simulant exactement la course et le rythme que je veux que vous me fassiez cum avec.

Vous me laissez prendre la tête et j'atteins vers le bas et mets en forme de tasse fermement votre robinet avant de laisser ma trouvaille de doigts votre tirette. Prenant mon temps, je vous libère et écoute vous gémissement votre appréciation pendant que vous vous penchez en arrière contre le compteur de cuisine et laissez tomber votre tête en arrière. Votre bruit d'offs de coupe fort comme ils ont frappé le plancher, mais pas aussi fort que votre respiration. J'engloutis lentement votre robinet en sueur chaud dans ma bouche et détecte à l'oreille le crochet dans votre respiration. Assez sûres, vos haltes de souffle et alors avec un whoosh commence le support encore, plus fort et plus dur qu'il y a un moment. Vous élargissez votre position, me donnant l'abondance de la pièce de lécher et sucer votre robinet. Ma langue vous baigne et je gémis mon appréciation de votre goût. Je vous suce profondément et le frotte fermement avec ma main à la base, laissant ma facilité de doigts sous vos boules et course derrière elles. Je me sens que vos jambes temps et vous gémissez fort et atteignez dehors et frottez ma tête et cheveux et mettez en marche chuchoter à moi. À plusieurs reprises vous me dites à quel point bonne elle se sent, comment chaud et lisse ma langue est, comment mal vous me voulez, comme beau je suis, comment dur vous êtes.

Avec chaque mot je suis plus réveillé, gémissant et haletant autour de votre robinet. Mon gémissement et le halètement vous conduit fou et vous me soulevez pour un autre baiser de torrid, nos lèvres et des langues joignant d'une manière extravagante. Vous embêtement de don?t avec ma tirette, courant juste votre main en bas de l'intérieur de mes shorts et trouvez mes fonds de bikini. Maudissant vous tirez le votre distribuerez et atteignez avec les mains pour mon bouton et la tirette et puis poussez les shorts et les fonds de bikini au loin immédiatement et glissez votre juste de main dans mon monticule furry. Vous ne perdez aucune heure et descendez un doigt profondément à l'intérieur de moi, en ne laissant jamais allez de ma bouche et langue. Je gémis et fonds contre vous, mon mou allant de bouche, incapable de sentir n'importe quoi excepté votre main. Rapidement vous insérez un autre doigt et balayez en même temps mon clit avec votre paume et je frissonne et serre vos doigts avec mes muscles d'amour.

Je traîne mes lèvres vers le haut de votre cou à votre oreille et culotte et chuchote dans votre?now d'oreille, maintenant!? haleter et fondre sur vos doigts. aucun bébé? vous chuchotez en arrière et frottez vos doigts dans et hors de moi, alors répandant mes jus au-dessus de mon clit. tour?My pour vous taquiner bébé? vous grimacez pendant que vous enlevez votre main et me prenez et me glissez sur le compteur de cuisine. le?Spread vos jambes et I?ll vous font cum? vous me dites. Soudainement je me sens ouvert et exposé, jusqu'à ce que je note que quelque part le long de la manière vous avez ouvert votre pantalon et mette sur cric lentement votre robinet. Sa roche dur, et toute mon attention est portée là-dessus. Quand vous étroit maigre et écarté mes jambes, mes cuisses partie comme le beurre fondu. Je me penche en arrière sur mes mains et laisse mon dos principal de baisse jusqu'à ce que mes cheveux balayent le contre-?Ohhhh supérieur oui, quel chat juteux doux que vous avez le bébé? vous gémissez. Vous tourbillonnez votre langue le long de mon clit et vers le bas dans mon sopping maintenant fendu. Le bruit de votre voix si rugueuse et non contrôlée est comme la foudre dans mon âme. Vous prenez la notification que je tends et tremble quand vous parlez, et commence immédiatement un dialogue de roulement faire une pause pour effleurer seulement votre langue sur mon clit. Vous glissez vos doigts en cercles autour de ma fente, ne les glissant pas dedans, juste autour et autour.

Oui, je vais faire votre chat doux cum le bébé, vous sais que je suis. Je veux sentir ce joli chat serrer partout mon bébé de robinet. J'halète et ferme mes yeux, descente plus profonde dans l'électricité votre créer. Vous sucez sur mon clit et continuez à taquiner ma fente jusqu'à ce que je gémisse que la prise de can?t de I en arrière tout plus long?I veulent venir sur votre robinet, bébé de pleeeeease?. Vous vous glissez immédiatement me du compteur et j'enroule mes jambes autour de votre taille et commence à vous embrasser aime demain le doesn?t existe. Vous me poussez contre la porte froide de refridgerator et me dédoublez ouvert avec votre robinet. Je frissonne et commence immédiatement à cumming du froid sur mon dos et la chaleur dans ma fente. Mon chat trait votre robinet dur jusqu'à ce que vous commenciez à cum aussi. Il se sent comme un très long, très humide cum. Le can?t I indiquent où la mine s'arrête et vôtre commence. Soudainement il y a silence fort car le refridgerator fait une pause momentanément courant. les?Lets vont au lit? vous chuchotez. au sujet de la pelouse?? Je m'enquiers et vous riez et me dites des there?s rien à à gauche faire mais prendre soin d'un buisson tandis que votre main frotte mon monticule furry encore.

hmm .... (-1, Offtopic)

Anonymous Coward | more than 12 years ago | (#3591223)

Methinks a certain Author/Editor has some rambus stock. That or someone changed the defenition for thrashing on me.

Re:hmm .... (1)

jigokukoinu (549392) | more than 12 years ago | (#3591261)

HEY! Thats what I said!! Well, in a way. http://slashdot.org/comments.pl?sid=33243&cid=3591 213 Excuse me if i seem n00b-ish (snicker) in that I have no idea how to make sure that that is a real link. If all else fails, use that archaic copy/paste thing. -Jeremiah

Slow memories - not new (0)

Anonymous Coward | more than 12 years ago | (#3591227)

When I took an algorithm class last year we learned that back in the old days "memory was slow" compare to today. But, they were comparing to tape stations from the 70s, 80s, and other epochss and yet had a slew of algorithms available to handle parts working at different speed. these may come handy now, twenty years later.

Slow is a relative thing.

This post is for peace (-1)

cmdr_shithead (527909) | more than 12 years ago | (#3591249)

peace!

Why doesn't RDRAM die? (1)

purpledinoz (573045) | more than 12 years ago | (#3591264)

Seriously... why doesn't RDRAM die already... everyone knows it sucks for its price compared to DDR..... I hope Intel learned their lesson, they can't force stupid (and expensive) things onto consumers...

Re:Why doesn't RDRAM die? (2)

swordgeek (112599) | more than 12 years ago | (#3591323)

1) RDRAM doesn't die because Intel still supports it.

1a) Intel still supports RDRAM because it wasn't a 100% bad decision, and they invested HUGE amounts of money.

2) Intel can't force stupid things onto consumers? How about an endless string of CPU upgrades based originally on the 4004? Motorola dumped the 6800-based line for the PPC, which is what Intel has been too scared to do. If IBM hadn't fallen on their fat and lazy ass, the PPC probably would have cut Intel's market share to about 40% right now. (and we'd have a better windows CPU than the P4)

Re:Why doesn't RDRAM die? (2)

Toraz Chryx (467835) | more than 12 years ago | (#3591666)

If intel is still supporting Rdram so strongly, how come there isn't an Rdram supporting chipset on intels future roadmap?

Re:Why doesn't RDRAM die? (2)

swordgeek (112599) | more than 12 years ago | (#3591951)

Is there not? Excellent! That might mean that Intel will continue to support it on the P4 line, and then let it die a miserable death.

They can't dump it yet, because most of the early P4 systems were sold to companies who want some ROI before the hardware dies. If Intel pulled the plug 100% right now, Sun would reap the benefits.

Re:Why doesn't RDRAM die? (0)

Anonymous Coward | more than 12 years ago | (#3591670)

samsung 256mb pc800 rimm $83

crucial 256mb PC2100 DDR $78

all of $5 difference (the prices are straight from newegg if you don't believe me)

rdram hasn't been significantly more expensive then DDR for quite a while. Heck when I bought my rdram a while ago it was *cheaper* then DDR at the time ($78 a rimm vs $80 some for DDR)

So, let's see... (1, Flamebait)

jejones (115979) | more than 12 years ago | (#3591282)

...we compare the very latest Rambus RAM against previous generation DDR (isn't DDR333 available now?), find one benchmark in which the Rambus RAM runs about 4% faster, and say that Rambus "excels." What's wrong with this picture?

Free EQ account! (-1, Offtopic)

Anonymous Coward | more than 12 years ago | (#3591300)

Station Name : theincinerator

Has a level 60 rogue with primal / N. ToV stuff.

I traded some stuff for that account a while back, and I made a profit off of the items on it.

However, the password was changed.

So, possibly, either the original owner traded it to me and then changed the password (an attempt to rip me off), or, over the months of not using it, I misplaced the password. In any case, the password I THOUGHT worked, does not, so I can't do a damn thing with the account anymore.

Most likely the guy who I bought it from changed it back, so fuck him, I'm telling everyone the station name.

No big loss, I made my profit, but still...

For anyone who owns EQ out there, have fun guessing.

...i'm waiting to hear the whole story (1, Flamebait)

cygnus (17101) | more than 12 years ago | (#3591329)

this is sort of a bunk article, isn't it? i mean, they don't go into Rambus' higher latencies at all..

What about interleaving (2, Interesting)

nrosier (99582) | more than 12 years ago | (#3591348)

I still don't get what the deal is with all this Mhz....
Why can't they just do interleaving (call it stripping/RAID-0 for memory)? No need to crank up those Mhz's, but spread the load over a couple of DIMM's. Most large systems (at least Sun I know off) still use 100Mhz or so DIMM's but do 8-way interleaving (maybe even higher) to get their high memory bandwidths.
The market seems to be demanding higher Mhz's and seems to forget there's other stuff involved. Just look at IBM's Power4, Sun's UltraSparcIII etc... Lower Mhz's (or Ghz's) but with a big level-2 cache and by using SMP they're able to beat whatever Intel/AMD system you put them up against.

Re:What about interleaving (0)

Anonymous Coward | more than 12 years ago | (#3591413)

That's how the SIMM chips we were using before SDRAM/RDRAM worked -- that's why we had to add them in pairs. I heard that some boards let you do it with SDRAM too.

Re:What about interleaving (2)

Toraz Chryx (467835) | more than 12 years ago | (#3591692)

actually, we had to add simms in pairs because they were 32bits wide and the processor attached to them had a 64bit memory bus.

Re:What about interleaving (1)

Simon Kongshoj (581494) | more than 12 years ago | (#3591603)

Some chipsets (for example, i840, i850 and i860 for RDRAM, nVidia nForce for DDR SDRAM) use dual-channel RAM to boost effective memory bandwidth, effectively turning the RAM to a two-device stripe.

Let's discuss CPU cooling & SMP (4, Informative)

Jeppe Salvesen (101622) | more than 12 years ago | (#3591422)

CPU cooling is much more relevant to performance than a 2% memory bandwidth gain.

Basically, CPU cooling has been hitting us for a good while.

From an article [theregister.co.uk] about a bigass Beowulf cluster running Transmeta processors, you have Wu-chun Feng of the Los Alamos Labs stating

The continued tracking of Moore's law will result in the microprocessor of 2010 having over one billion transistors and dissipating over one kilowatt of thermal energy; this is considerably more energy per square centimeter than even a nuclear reactor.
Oh my. So - what else can we do to stop this trend? Relatively slow multi-processor machines. If we keep working on multi-threading our applications, we might be able to make a computer with 8 1ghz efficient chips outperform an 8ghz Moore-compatible Intel hype-chip-based system. Really. Multi-processor machines have traditionally been too expensive for the desktop. The software people have not spent a lot of time making sure that the regular end-user applications scale well across several processors.

Take something like a web browser. Given a bit of wizardry (obviously, we need to consider concurrency and critical sections), you could have separate images downloaded and processed by separate processors. Your flash ad would run on another processor.

Frankly, I'm wondering what's stopping us from using this approach to increasing performance? Is this like the fact that OEMs equip the low-end PCs with too little RAM so that Joe Shmoe will buy a new one as quickly as possible, since he does not know that spending 100 bucks on more RAM will make his computer last another year or two?

And, really, as long as the focus is on the gigahertz, do the chip makers really concentrate on making their designs as efficient as possible?

Re:Let's discuss CPU cooling & SMP (1)

zaqattack911 (532040) | more than 12 years ago | (#3591609)

UUUhh for a webpage loading multiple images and perhaps a flash object... I'm pretty sure it has to do that in seperate threads anyways.

Thus an SMP system would handle that just fine without any extra programming.

Re:Let's discuss CPU cooling & SMP (1)

Jeppe Salvesen (101622) | more than 12 years ago | (#3591674)

Moz doesn't seem to be doing this by multi-threading, at least not native threads. Try monitoring the number of threads on Moz when you download a page.

I dunno about IE or Opera, though. They might.

Re:Let's discuss CPU cooling & SMP (2)

Courageous (228506) | more than 12 years ago | (#3591615)

Frankly, I'm wondering what's stopping us from using this approach to increasing performance?

Multithreaded programming is tricky, and writing efficient multithreaded programs that don't suffer from mutual thread-contention issues is even trickier. The sovoir noire of thread programming is just now reaching the mainstream, in part due to Java, actually. Which isn't to say I'm any kind of Java fanboy, but credit where credit is due.

Speaking of Java and threads, I think it's past time for someone to seriously think about creating a language with even more first class structures for dealing with parallelism.

C//

Re:Let's discuss CPU cooling & SMP (1)

Jeppe Salvesen (101622) | more than 12 years ago | (#3591720)

I'm defintely not arguing that this is tricky. However, some of the multithreading might be possible to do behind the scenes. Let's consider GTK or Swing. By introducing some (hidden) complexity, wouldn't it be feasible to have multiple threads painting and manipulating widgets and windows? If we had some communications between components and "layout manager", you could have the "layout manager" assign tasks to children, since it should be able to figure out the sizes needed for the widgets.

Am I stumbling here? I haven't dealt that much parallelism, really.. (About to, though, but that's a different story)

Re:Let's discuss CPU cooling & SMP (2)

Courageous (228506) | more than 12 years ago | (#3591797)

Well, the easiest way to achieve such a thing would be to back it with what is called a "job-worker-thread model" where you ask for something to be done and then have a pool of threads service the request. What makes this hard is time-dependencies between the tasks, and mutual resources that they each depend on. For example, does the underlying OS _itself_ allow multiple threads to blit to areas of the screen at the same time? While certainly each thread can _prepare_ its bit plane simultaneously, it's likely that there will be some resource-contention going on there, in some way limiting what we can actually get out of multithreading. Note that I actually don't know what OS constraints will be faced. Let's just say that even on a multiprocessor machine, multithreading results can be somewhat disappointing, some of the time. There's a whole stack of issues to be addressed, including the application, the OS, mutual resources like memory and storage, as well as absolute hardware issues like (on some machines) shared bus limitations between the multiple processors.

C//

C//

Re:Let's discuss CPU cooling & SMP (1)

dmelomed (148666) | more than 12 years ago | (#3591904)

Speaking of Java and threads, I think it's past time for someone to seriously think about creating a language with even more first class structures for dealing with parallelism.

Erlang [erlang.org]

Re:Let's discuss CPU cooling & SMP (1)

dmelomed (148666) | more than 12 years ago | (#3591931)

When writing multithreaded software will be as easy as writing multi-process software, that's where it will be at. Until then, most threaded software is a pain in the ass to write. I say most, because there are libraries which allow for much easier multithreaded software development, without a need for mutexes and locks. e.g.state threads.

There's more to a product that its performance. (1)

Sivar (316343) | more than 12 years ago | (#3591425)

I do not use RDRAM. Not that I do not like its performance, thought that advantage is reduced when you use many modules because of its serialization, but because Rambus--the company--is nearly as evil as Microsoft.
I'm not one to require all companies that I purchase from are ethical, else I would have to be a hermit, but Rambus has gone too far too many times.
What gall a company must have to participate in open meetings of industry to discuss what to put inthe next few memory standards, without contributing, and then PATENT other peoples' ideas! Then to charge those same companies royalties to use their own innovations! Sickening!
Here is a good, short article. I'm too lazy right now to write the html code. Sorry. :)
http://www.theregus.com/content/archive/18849. html

different RAM types were within 5% of each other (0)

Anonymous Coward | more than 12 years ago | (#3591667)

So it's a no-brainer: the speed is basically the same - so go for the cheapest RAM and buy more boxes with the money saved.

Future "ALL IN ONE" memory wants to replace RDRAM (1)

geekster_2000 (580578) | more than 12 years ago | (#3591733)

DDR SDRAM, SRAM, DRAM, FLASH, ROM, CD, HARD DRIVES, MRAM, FRAM, etc. look at this new technology if you are a Geek and see what
is in the Future of Data Storage.

www.colossalstorage.net

next level? (2, Insightful)

crow (16139) | more than 12 years ago | (#3591748)

What does "the next level" mean? Does that mean that mean that my fifth level fighter will have 35,001 experience points with the new technology? Does it mean my cube will be moved upstairs? Does it mean the little bubble will sit in the middle of the glass?

That phrase should ring Dilbert-esque alarm bells. If there were awards for the most over-used marketing phrases, "the next level" would be due to win the grand prize this year.

Did you know that there are about 788,000 hits on Google for that phrase?

I'm sorry, but I have a bit of trouble taking any article seriously that uses that sort of marketing-speak.
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