They are using the same test system to benchmark each video card. I would think you can use each group of benchmarks to judge how one card would scale to another card. There's no way you can judge those benchmarks to what we get on our systems.
I ran the following Crysis test:
EVGA 780i
Q6600 @ 3150 MHz
EVGA 8800 GT SC (2x) SLI
Crysis Benchmarking on Vista 64
Timedemo: benchmark_gpu
DX10 1600x1200 AA=4x, 64 bit test, Quality: High, Overall Average FPS: 13.15
Those setting wouldn't be playable with my system. The only component that I have in common with the Techpowerup test system is the PSU.














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