Im wanting to upgrade both my gaming rigs there both running dual cores. I've already brought a q6600 second hand off ebay ( In post at moo ). Im not sure im going to see much gain over an firstname.lastname@example.org tho. So instead of getting another q6600 or sticking with the E8200 i'm thinking Q9650, But there £250 ! Will i see much inprovement with a Q9650 over a Q6600 @ say 3.2 or an E8200 at around 3.9 ?