Im running with an ATI Radeon HD-4950, 6 gig of ram on Windows 7x64.
I can set everything to max and have no issues, as soon as i touch the FSAA bar even to set it from 0 to 2x my frames drop to >15. If i dare turn it up to 8x my entire computer lags. I have 2 displays running and a movie or whatever on the 2nd one will match the framerate of the game.
I run the game at a res of 1920x1080. It seems when i turn down the resolution or the general graphics bar, i get some play with the FSAA bar. If i decide to play in 800x600 or with all graphics turned down.. i can have the FSAA turned up.
I can run newer games like WoW and Rift with max or almost max settings in every category
I'm posting from work otherwise id have a nice dxdiag and everything to see what exactly might need to be tweaked, without that - Anyone have any ideas as to what could cause this?