CS: Source - Half-Life 2 Preview?
Stress Test - 4xAA / 8xAF
With 4x/8x enabled at 1024x768 resolution, we see the NVIDIA cards competing very well with the ATI cards. The Ultra is running faster than the XT PE from ATI and the GT is running faster than the X800 Pro.
We see the break off of the ATI X800XT PE much earlier with AA/AF enabled. Here it is 13% faster than the Ultra card, but the 6800 GT is still pulling out a better score than the X800 Pro.
At our highest resolution testing, the ATI X800XT PE is coming a full 20% faster than the 6800 Ultra and 48% faster than the X800 Pro! That is quite an impressive margin over NVIDIA's reigning video card. On the $399 price point cards, the GT is still out running the X800 Pro cards slightly and notice the min FPS on the GT is a full 10 fps higher than the X800 Pro.