Intel Core i7 4770K Review @ OCC
 

After taking an initial look at a press-only event a few weeks back, I was hopeful that there were just some really bad early samples out and that the Core i7 4770K would overclock at least as well as the three Core i7 3770Ks I have. Truth be told it was right on par with my ES 3770K and a little behind the two retail samples at 4.7GHz. All in all not bad, as that is a 1.2GHz bump over the base clock speed. By pushing this far, heat is going to be an issue even with water cooling, so the recommendation was to try and stay under or around 1.25v, and no more than 1.275 as the thermal load contained in the small confines of the die just cannot be shed fast enough to keep from warming up regardless of the cooling used.

http://www.overclockersclub.com/revi...core_i7_4770k/