Originally Posted by XDanger
Yes but get an E8400 or Q6600 instead of the graphics card.
He doesnt even need a new CPU if he knows how to overclock because he should be able to hit an easy 3.4ghz with that E6600. Pair that up with a GTX 260 or 285 and he has a nice system.
As for going from a 512mb 4870 to a GTX 285 yes you will notice a difference. I noticed a difference going from an 512mb 4870 to a GTX 260, most games just run faster on nvidia hardware and without the driver issues of ATI.