well, to tell you guys the truth.
The ATI x800 Xt outperforms the 6800 ultra. By a tad little amount. But yes, it outperforms the 6800 ultra. How do I know?? I saw both cards actually working in real life.
Rich Friend: Hey, you wanna go check out my two new video cards??
Me: wat are they??
Rich Friend: I got one 6800 ultra and 1 x800 XT.
Me: oh shit. Let's go check em out rite now.
After benchmarks and games.
Rich Friend and Me: ATI has slightly better image quality. FPS is almost the same, with ATI winning sometime, Nvidia winning sometime. AA and AF both work better on ATI.
ENd result:
ATI Wins. albeit a small amount.
Real World Result:
It doesn't matter. You wont' notice the difference.