I am going to upgrade soon since my current cpu can't keep up and has become a major bottle neck so does any have any suggestions for a 45nm dual core that has a good chance of hitting 4ghz+ while staying below 1.4v on the core. Mainboard xfx 780i. PSU antec ea650, current cpu e6400 (B2) at 3.4ghz 1.376v. Please nothing major pricey I am not the fed who can spend like a Rothschild.