While I was experimenting with Doom III settings and benchmarking with the timedemo I realized that if I disabled my second CPU on my Dual 2.5Ghz G5 I could get a 33% performance bump. I used the CHUD tools to disable the second processor. With two 2.5Ghz Chips running with my Geforce 6800GT I was able to get 32.7 FPS at 1680x1050 resoultion High settings with all Advanced options on except for Vsync and FSAA. Aniso was set to the standard 8x. However upon disabling the second processor I get 43.2 FPS at the exact same settings and resolution. I can even bump up to Ultra Quality settings and still get 42 FPS in the timedemo! I know it sounds weird and it is weird because I only get this bump from disabling the the second CPU at a resolution of 1680x1050 and with FSAA off. Having one or two proccessors on made no difference if I had FSAA running at any resolution or setting. Perhaps folks with a Dual CPU configuration machine can check for me as well. I am interested if others see this at resolutions higher than 1680x1050 like the standard 1600x1200 or at 1920x1200. I got no speed improvement from disabling the processor at lower resolutions and FSAA still kills performance but something is deffininitely not right.