When my uncle upgrades to an i7 2500k, 8GB Ripjaws DDR3 with a XFX 6870 I'm gonna try get his last gen i5, 4GB DDR3 and 5770. I can run this on a 400W Corsair PSU, right?
I'm not even joking, you might be able to. The 5770 is incredibly good with power consumption.