Take a look back at how Intel CPUs have progressed over the years. We're testing and comparing the original Core 2 Duo CPUs against the Nehalem-based Core i5-760 and Core i7-870, the Sandy Bridge Core i5-2500K and Core i7-2700K chips, and then to the current generation Haswell Celeron, Pentium, Core i3, Core i5 and Core i7 parts.
Enthusiasts have been pushing the limits of silicon for as long as microprocessors have existed. Early overclocking endeavors involved soldering and replacing crystal clock oscillators, but evolving standards brought options for changing system bus speeds, while some of the most daring would gain boosts through hard modding. These are but a few of the landmark processors revered for their overclocking prowess.