My card doesnt support DX11? dxdiag says i am running it. And i'm looking to play the game on high, not just minimum, if i buy a better GPU can that be achieved or will my CPU bottleneck me? BTW its core 2 dup E6750 @2.66ghz.
PS ive never done any overclocking, how would i go about that? My mobo is a p5n-e sli. Also what are the benefits of having two graphics cards in SLI
No, your card doesn't support DX11. You might be able to run the game on high, hard to say since it's not out yet. I would guess that your CPU is going to be a bottleneck in that game since they are recommending a quad core.http://www.tomshardware.com/forum/259899-29-core-overclocking-guide
That guide should help with overclocking.
SLI is where 2 graphics cards run in parallel and share the graphics processing load. Depending on the game it can come close to doubling performance over a single card.