I definitely agree that using Quake3 Arena, a mid/late 1999 game to still benchmark new hardware should be outdated. The most hardware demanding game that I actually play might be UT, but there is no way that this 1999 game could have been written to fairly represent optimizations for most recent 2002 hardware.
There is logic behind THG's decision to benchmark games @ 640x480, which has reasonably good clarity, even though it is not used by most gamers. While it remains true that most gamers use 800x600 or 1024x768(sometimes higher), lower resolutions more accurately reflect performance variation among different CPUs.
Let me explain using the same exact logic in the 2 following paragraphs for the sake of rhetoric & direct comparison. Lets also assume Graphics card, memory, motherboard chipset, RAM, & as much else as possible is held constant However, when comparing both Intel & AMD platforms, we all know there is lots of hardware the 2 platforms cannot share in common; therefore, noncommon hardware should be roughly as comparable as possible:
The higher the resolution is increased, the greater the influence by Graphic Card, and the lesser the influence by the CPU. This is not to say CPU does not play a critical role in benchmark performance @ 1600x1200; it does! It is just that the CPU's influence becomes less dominant, while the Graphics Card's influence becomes more dominant at this very high res.
The lower the resolution is decreased, the greater the influence by the CPU, & the lesser the influence by the Graphics card. This is not to say the graphics card does not play a critical role in benchmark performance @ 640x480; it does! It's just that the CPU's influence becomes more dominant, while the Graphics Card's influence becomes less dominant at this lower res.
My OS features preemptive multitasking, a fully interactive command line, & support for 640K of RAM!