I plan on buying a 6670 sapphire DDR3 for 70 dollars, though if i spend 10 more, I could get an XFX 6670 DDR5. In terms of FPS, how much more will you get with the DDR5 vs the DDR3?
EDIT: Although it would be better for me to get a 7750, my CPU isnt really that great (Phenom 9550-2.2ghz)