Originally Posted by Fantasy
actually your wrong, games do use 6 cores, BC2 utilize all my 6 cores and also BF3.
so if you planing to play demanding game like Dirt 3, BC2, BF3 and do some video editing then you should get the 6 cores.
ok, so most
games will not optimize for 6 cores. And the games you listed: Dirt 3, BFBC2 and BF3 are going to be more GPU intensive and unless you have have 2 high end cards a quadcore CPU will never be a bottleneck, a quad core wont even be a bottleneck with a single GTX 580.
But back onto topic:
If your GPU is final, as in you already bought it, then keep it. Otherwise I have heard good things about XFX Warranties, or you could go Green
and get a GTX 570 or 580