Quake III Arena
Now for the gaming tests. We tested with a Quake III demo from a CPL match involving my bud fatal1ty, of course. It's a longish demo for benchmarking, but it should be a nice test. You can grab the demo from our server here, at least until we find out the thing is copyrighted somehow.

The GeForce FX 5800 Ultra performs very well in Quake III, outpacing the competition ever more decisively as the display resolution increases. With anisotropic filtering and edge AA enabled, the FX's advantage grows slimmer, though.

Comanche 4

Comanche 4 is obviously limited by our test platform rather than by graphics cards when AA and aniso aren't enabled. However, once we turn up AA and aniso, the GeForce FX 5800 Ultra runs neck-and-neck with the Radeon 9700 Pro. The 9800 Pro, though, is faster at higher resolutions.

Codecreatures Benchmark Pro
The Codecreatures benchmark makes extensive use of DirectX pixel shaders, so it's an intriguing test for these cards.

Here we see the opposite result of what we saw in Quake III. The Radeon 9800 Pro is fastest without aniso and AA, but the FX pulls way out into the lead once we turn up the eye candy.