Quake 4
We tested Quake 4 using our own custom-recorded timedemo. The game was running at its "Ultra" quality settings with 4X antialiasing enabled.

The 7800 GS OC distances itself somewhat from the GeForce 6800 GS in Quake 4, but not by a wide margin. Sadly, our Radeon X800 XT PE managed to extract itself from what might have been an unflattering comparison (since ATI cards in general don't fare well in OpenGL games) by causing Quake 4 to crash every time we tried to load up the game. We just didn't have time to futz around with different driver revisions trying to get it to work, so the X800 XT PE took a mulligan on this one.