They got 40% OC from the i7 920, a good read.
More than two years ago I found myself writing our first Core 2 Duo overclocking performance article based on the Core 2 Duo E6700 processor. For the first time we showed this new processor operating at 3.66GHz, opposed to its default operating frequency of just 2.66GHz, where at the time it was still incredibly quick.
Now we plan to do much the same with the new Core i7 processors, to see what they are capable of with a little after market cooling. Overclocked to 3.66GHz, the E6700 was easily able to outclass anything at the time, with even Intel's own most prized Extreme Edition processors no match at their default clock frequencies. So what can the already very fast Core i7 processors do at 3.80GHz and beyond?