G5 vs Opteron, Finally
I'm really puzzled about the (Surprise) remark in the article.
The "(surprise)" remark is about Photoshop. I think the author of the article means that, since Photoshop is a very important app for Macs (they being the platform of choice for artists, at least traditionally), it is often expected that it should run better there than on Windows.
I don't know how true it is today that graphics professionnals prefer Macs overs Windows boxes, or whether Adobe et al put more effort in optimizing their products for either system, but it certainly seems odd that the G5, which the article finds to be faster than the Opteron in many cases, performs badly (relatively speaking) on an application as crucial as Photoshop.