To measure how well both cards perform with actual gameplay we used Unreal Tournament 2003 and 2004 and Halo and Far Cry. For both versions of Unreal Tournament we’ve used the built-in benchmark, which consists of a flyby and a botmatch. We’ve omitted the flyby scores as they doesn’t tell us much about performance during actual gameplay, just how fast the graphics card is able to render the flyby. With UT2003 the lead the GeForce 6800 Ultra takes over the Radeon 9800 XT is less impressive, at a 1024x768 and 1280x1024 resolutions it is only 6% faster. At 1600x1200 however the GeForce 6800 Ultra pulls away and clocks in 21% faster. With UT2004 the difference is much bigger, starting off at 10% at 1024x768 up to 65% faster at 1600x1200. What is also noteworthy is the fact that the performance of the Radeon 9800 XT drops at higher resolutions whereas that of the GeForce 6800 Ultra stays at about the same level.