A card like that and a cpu... It's like running a 4870 on a pentium 4. Anyway best route to go is a 5770(best for price and is better than a 4870), 6850(best for stock), or 460(best OC). the CPU will be the minimzer to the 6950. Crossfire is for PC fanboys any way. A true gamer uses his 15inch dell monitor, single 5770, amd althon 2 x4 2.9.