So I noticed my 9800 GTX+ has not been able to handle newer games like it used to so I picked up a second one for dirt cheap with intentions to see if sli would help out. Only problem is I didn't realize it wasnt supported on my board. So I was going to get a better card. I was thinking either a HD 7850 or GTX 660. Then I started thinking maybe its just time to upgrade system but I am not sure which would see the better improvements. Heres my 2 options:
Keep current system with new card:
Core 2 Quad q6600
8 gigs DDR2 RAM
GTX 660 or HD 7850
Or a new board and CPU for SLi:
4 gigs DDR3 1600 RAM
a cheaper MSI Mobo
2x9800 GTX+ via SLi
Master, read the OP again - he'd be upgrading the CPU.
(That being said, OP, you should spend the little bit extra to get a 3570k and 8GB of ram.)
I personally would wait just a little bit, though - Intel is going to be rolling out their Haswell processors in a little bit, and it would make a lot of sense to hold off the upgrade till then. (But I would definitely upgrade.)
Thanks for the input guys. Based on my budget of around 200-300 I decided to pick up a HD 7850. Got a good deal on it too. So far the only bottlenecking Ive had was a little bit on Borderlands 2 on my 40inch TV. But running 1920x1200 on 24inch I can run BF3, FC3, Skyrim and Borderlands 2 all on Ultra with no lag.