We didn’t provide detailed comments for each of the diagrams above for one simple reason: the relative performance of Core i7-2600K and Core i7-990X Extreme Edition does not really differ from the results obtained in nominal mode. And there is nothing surprising about it, actually. Although Core i7-2600K and Core i7-990X Extreme Edition are based on two different version of Core microarchitecture, they demonstrated almost the same hidden frequency potential. So, both these processors provide overclocking enthusiasts with similar performance gains.
At the same time, I can’t help mentioning that overclocked Core i7-2600K and Core i7-990X Extreme Edition processors are simply beyond any competition. No other overclocker processors can get close to them. 32 nm process combined with contemporary Intel’s microarchitecture is a real goldmine for those enthusiasts who are on a quest for highest performance and are not afraid to have their hardware overclocked.