performance abnormal by AA for high-end videocard!! because the driver nvidia is heavier than the setting game. lol AA driver + AA "setting game" may drop +/-120% performance! !!! to fix this problem: -from "overrides AA" to "apllication controlled" in driver nvidia!!! -you get there AA in setting game!!! -back to performance normal and faster!! good luck. sorry I added 2 same threads ("nvidia drivers section" and "Games, Gaming & Game-demos") because this problem is very, very important!!!