As you can see from our graphs the FX 5700 Ultra runs AquaMark 3 at 27 frames per second without AA/AF, which cannot even get within spitting distance of the FX 5900. However it does perform slightly better than the 9600XT. On the other hand, once AA/AF is kicked in, the FX 5700 Ultra drops down to 14 frames per second and over taken by the 9600XT. I highly suggest you don't turn on AA/AF, you're not going to like it.
Comanche 4:
Again once 4x AA / 8x AA is activated, the FX 5900 outscores the FX 5700 Ultra and 9600XT. The FX 5700 Ultra still beats out the 9600XT in all resolutions. As we can see, the FX 5700 seems to have a linear gradient throughout the change in resolutions. While the other cards seem to drop slightly once they reach 1600x1200.