Cut the AA off, do frame rates improve? If they do, then it is a card GPU/memory problem, not a system memory problem. Vice versa, if framerates remain the same, you have a concern with the CPU or system memory. If you are running Vista or WIN7, then 2 gig might be cutting it thin.
For me Crysis was the first game that made me upgrade to 4gig of system memory. My 2gig, even with XP, wasn't cutting it. During the game it would stutter, framerates would drop, and the hard drive would start thrashing the pagefile. Which reminds me, look at your hard drive light and see if your hard drive is thrashing during your slowdowns. If it is thrashing during your slowdowns, then thats an indication you are running low on memory as your HD is hitting your pagefile.
Edited by dpunisher, 04 July 2011 - 07:26 PM.
I am a retired Ford tech. Next to Fords, any computer is a piece of cake. (The cake, its not a lie)
3770K @4.5, Corsair H100, GTX780, 16gig Samsung, Obsidian 700 (yes there is a 700)