In order to get a clear idea as to how both 8800 GTS 512 cards relate to their brother GPUs, we threw in a bunch of representatives of the 8800 family, including a Asus EN8800 GTS 320, a BFG 8800 GTS OC2 640, a Asus EN8800 GTX, a G92 based NVIDIA 8800 GT (512 MB), and G92 based BFG 8800 GT OC. To get a representation of ATI's offerings in the category of performance, we also included a PowerColor HD 3850 Xtreme PCS 512 MB card, and a HD 2900 XT.
Usually we select cards with wider differences in performance levels -- but this time around we wanted to narrow the range a bit, and focus on the more recent, higher-end cards. Most of these GPUs in our benchmarks should offer fairly similar performance. We chose not to include any 8600 GTS/GT or HD 2600 XT/Pro class cards or lower, because frankly, they'd get killed by the competition.