Performances in a nutshell We calculated the average of all benchmark results, gave the same weight to all games, and attributed 100 to the GeForce 6600 GT in 1024 x 768.
In standard mode, the 7600 GT wins if we leave out the 7900GT. The X1800 GTO, released at the very last minute to counter NVIDIA isn´t enough and is 6% slower. The GeForce 7600 GT is 60 to 70% faster than the 6600 GT and 25% faster than the 6800 GS. Not bad at all! The 7600 GS is a few percent ahead of the 6600 GT
With antialiasing, things are quite different. The 128 bit memory bus restricts the 7600 GT that provides rather good performances ending up right behind the X1800 GTO. The 7600 GS is at the same level as the 6600 GT 256 MB. The 128 MB is slightly behind because of the 0 obtained in Act of War.
In HDR, it’s an identical situation. The X1800 GTO is in the lead but not by much. The 7600 GT is 20% faster than the 6800 GS. Thaks to a higher calculation power, the 7600 GS is 13% faster than the 6600 GT.
This graph is a little particular, because ATI and NVIDIA´s performances aren´t directly compared. The reason is that out of five games that function in HDR, ATI runs 4 with antialiasing whereas Nvidia only launches 2 because of the lack of multisampled surfaces in FP16. The result is that the GeForce gets a 0 for this test, reducing their average grade. It´s the same for the X800, which supports HDR and antialiasing only in Half Life 2.