Like the Core i5-2500K, which is also based on the “Sandy Bridge” architecture, the new Core i7-2600K (3.4 GHz) proved to be an outstanding CPU for overclocking.
The Core i7-2600K gets internal 3.4 GHz by multiplying its 100 MHz base clock 34 times.
To overclock the Core i7-2600K, we used an MSI P67A-GD65 motherboard (1.0 BIOS). Increasing the CPU voltage to 1.45 V, we were able to increase the CPU clock multiplier up to x48, making the CPU to run stable at 4.8 GHz internally. Increasing the CPU voltage a little bit more to 1.50 V we were able to push the clock multiplier one notch. At x49, our CPU was running internally at 4.9 GHz stable, a 44.1% increase in the CPU internal clock rate. Outstanding.
It is very important to remember that we got an engineering sample from Intel, which may have a higher overclocking capability than the final product that will arrive on the market.
We didn’t play a lot with all overclocking options, and you may achieve even better results.