Doom 3 - Delta Labs
We'll kick off our gaming benchmarks with Doom 3. Our first Doom 3 test uses a gameplay demo we recorded inside the Delta Labs complex, and it represents the sorts of graphics loads you'll find in most of the game's single-player levels. We've tested with Doom 3's High Quality mode, which turns on 8X anisotropic filtering by default.

Doom 3 has not been ATI's home turf, but the top ATI cards perform reasonably well this time around. The GeForce 6800 Ultra maintains a slight edge overall, and the $399 GeForce 6800 GT shadows the performance of the more expensive X850 cards. Still, the difference in performance between the X850 XT PE and the GeForce 6800 Ultra is only five frames per second at 1600x1200 with 4X antialiasing.