The following benchmarks were tested with Detonator 45.23 for the nVidia cards, and Catalyst 3.7 for the Radeon 9800 Pro.
If you play nothing but UT2003, the FX5900 Turbo is your card. With FSAA off, even when at default clock speed its able to put some hurt on the 9800 Pro, and when maxed out it delivers a pounding. As FSAA is increased, however, the differences between the cards becomes much smaller.
