I seem to be having an issue with my video card. I recently finished a game of BF3 on multiplayer, and upon loading the next map, I experienced frame lag, roughly around 2-3FPS. I tried various servers and seemed to have the same issue. In an attempt to see if this was just BF3, I loaded up Skyrim and got the same issue.
I used Furmark and GPUz to see if the stress was heat related, but in the 15 minute run @1920x1080 on Furmark, the card never went over 45C. The GPU usage was ~90, and the memory usage was ~25. I've experienced similar problems with a 9800GTX, and it ended up being heat related.
AMD Phenom II X4 955 Black Edition @ 3.2GHz
G. Skill 4GB 1600MHz
Galaxy GTX 560Ti GC BF3 Edition *Forceware 301.42 WHQL driver
HP DVD1170 Disk Drive