Vigile (99919) writes "A new system for testing performance of graphics cards that has been in the works for over a calendar year is being fully unveiled today, called Frame Rating. This technology uses hardware-based capture to record the output from the graphics card and GPU directly and then uses post processing to measure performance and experiences as the user would see them, not through basic logs recorded on the gaming system itself. This much more accurate representation of performance has revealed some interesting highs and some unfortunate lows for graphics vendors already. AMD's CrossFire and Eyefinity technologies take the brunt of the damage: Frame Rating proves that in many games adding a second GPU to your system will result in essentially zero improvement in performance, frame rate or animation smoothness. PC Perspective has detailed the new testing methodology and posted the first sets of data across several PC titles."
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