Was thinking of upgrading my cpu have a 2600k or 2500k overclocked to 4.6. Was thinking of getting the 3770k or maybe the i5 3570k (if I can overclock the shit out of it). Any opinions welcome. (or should I just stick with what I have.) BF3 and blops2 is all I mainly play, on a water cooled 7970. Would either of these cpus give me an advantage over what I currently have now?