High Quality AA and AF
Our high quality tests let us separate the men from the boys and the ladies from the girls. If the cards weren't struggling before they will start to now.
Turning on AA and AF high quality settings the HD 2900 XT manages to score similar to the 8800GTS where in our non AA/AF tests we saw it come first.
We again see with the AA and AF on that performance is closer to the GTS offering from Nvidia while the GTX manages to outperform the card quite significantly.
Again moving to the OpenGL based Prey we can see that the Nvidia cards really put the hurt on with the HD 2900 XT only managing to be slightly faster than the older Radeon X1950XTX.