An aspiring overclocker and Coolaler forum go-er "u48802109" got his/her hands on an engineering sample and set out to see just how far he could push the upcoming Intel Core i7 2700K processor using air cooling.  In an exciting result, the overclocker was able to achieve a stable 5 GHz overclock on the 2700K with a 100 MHz bus speed and 50x multiplier.  Even more amazing are the voltage and temperature results (keeping in mind that we don’t know the particular HSF being used) of the overclock.  Specifically, they were able to hit 5 GHz with 1.384 V and hit a maximum temperature of 65 C.  

A zoomed in look at the CPU-Z readout.

While air cooling may not be able to support going to much higher frequencies, water cooling could certainly open up even more headroom in the chip.  Also, keeping in mind that these are engineering samples, it will be interesting to see where the Core i7 2700K falls once it starts rolling out to consumers.  If these results hold out, it does seem like it may just be worth it to pay a few extra bucks and eschew the 2600K for new builds.  What are your thoughts, are these results encouraging to you?  You can see the full overclocking results here.