Those who tinker with sophisticated cooling technology can often overclock processors to extraordinary speeds, but the guys at TechSpot took a more practical approach. Using a rock-bottom-priced ($180) E6300 Core 2 Duo processor and a few simple parts, they raised its clock speed from 1.86GHz up to 3.03GHz without compromising stability. As a result, they got better clock-speed performance with this low-priced processor than they would have using a $1000 2.93GHz Core 2 Extreme 6800 chip.
Looky what they did with the more-expensive ($580) E6700 Core 2 Duo chip, cranking it up an extra 1GHz from 2.66GHz to a lofty 3.66GHz. Sure, some overclockers are able to exceed 4GHz with that same E6700 Core 2 Duo, but that's only possible when using exotic, expensive and impractical water cooling systems. Without using much more than a 120mm fan and an aftermarket heat sink to cool the over-revving chip, these guys were able to achieve a 33% speedup, calling its performance "astonishing." The tweakage involved is not for the faint of heart, though. See how they did it after the jump.