Sandy Bridge processors ending in "K", like this one, have unlocked CPU clock multipliers. That means they are especially well suited for overclocking, as normal processors have the clock speeds much more locked-down.

Intel's socket 1155 processors, codenamed 'Sandy Bridge', are Intel's 2nd Generation Core i3 / i5 / i7 line. They all feature integrated graphics capabilities, though in order to use those a motherboard must have a compatible chipset and video outputs. In addition, these processors bring lower power consumption and higher performance, leading to a boost in overall efficiency. For more details, check out our launch article about this platform.