i overclocked my intel i5,750 to 3,6ghz. 200 multiply 18, and run at 38 degree idle, so thats very good, i have a msi mainbord, and 8gb ram. big cooler, hehe. ram frekvence 1200, at 1,30 volt. Modell P55A-G55(MS-7668). 8.GB Dubbel-Kanal DDR3 @ 598MHz (6-6-6-15) i5 is good as i7, just overclock alittle. i5 and i7 are made for do overclocking, and you save at least 130 usd.