go for the AMD FX 8350 with the HD7870
this is a great cpu especially if you OC to 5GHz, and the HD7870 is faster than the GTX660.
here is a nice review on AMD FX 8350 vs Intel 3570K
http://www.youtube.com/watch?v=eu8Sekdb-IE
you cant change resolution in ps3(except of 1 or 2 games)
This game you are taking about run at 1280x720 (no AA).
http://forum.beyond3d.com/showthread.php?t=46241