I have amd 1055t running at 3.71ghz on water and hd 6970 crossfire, I had 8 gigs ddr3 1600's that's 4x2gig sticks. I bought 2x8gig ddr3 1600's and put them in giving me 20 gigs ram and what a difference. No more stuttering, seem's a memory upgrade is the most worth while upgrade. I mean the game just crashed again on me cause of all the other bugs. I thought because SE was only using 3.5 gigs when I had 8gigs that memory was not needed but now that I have 20 gigs SE uses 10.5 gig not including my OS and other background programs.