Originally Posted by ChrisRay
4xAA uses the same memory as 8x/16xCSAA, Its only 16xQ/8xQ that'd be limited. But honestly.. I'd give a cookie to people who can see big differences between these modes at 2560x1600.
I almost always use "enhance" for 8x-16x CSAA. Looks great and doesn't carry an obscene performance hit. I've yet to notice a difference between it and MSAA.
Oddly enough, at least for me, FC2 with 4xAA set in game and enhanced to 8x-16x CSAA runs smoother than just running 4xAA through the game. So it's win|win. Looks better, runs better.