High Quality
Although Medium Quality with antialiasing nicely cuts down on jagged edges, especially at lower resolutions, I far prefer the visual goodness that is DOOM 3's High Quality mode. High Quality mode's 8X anisotropic filtering does wonders, and the visuals are truly stunning.

The Dustbuster takes a dive in High Quality mode, relinquishing the lead to the GeForce FX 5900 XT. Even the Radeon 9700 Pro pulls out ahead of the 5800 Ultra at higher resolutions, although it's still a few frames per second behind the 5900 XT. The good news is that all three cards are butter-smooth up to 1024x768.

Our second pack of cards is led by the Radeon 9600 XT and GeForce FX 5700 Ultra, which essentially tie. The GeForce FX 5600 Ultra, Radeon 9500 Pro, and Radeon 9600 Pro are all pretty close, too, although the 9500 Pro's performance improves as we turn up the resolution.

As for the GeForce4 Ti 4600, well, the results speak for themselves. The card is really only playable in High Quality mode at 640x480, and even then, the average frame rate is under 40 frames per second. Heck, the Ti 4600 isn't even half as fast as its closest competition, the Radeon 9600 Pro.