Battlefield 3, Rift, you name it... Anything that's came out recently, if I turn on AA (really at any level, but mainly past 2x), I have issues. 2x5770s have 2GB of RAM, the 6950 I'm getting also has 2GB of RAM.
what settings you running Bf3 at? becasue im prity sure you need a really strong PC to run that 4x AA(or whatever its called).