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Inside the unassuming shell of Intel's 3.4GHz Core i7-2600K, which has four cores and an 8MB cache, is a brand-new architecture, the second to be introduced on Intel's 32nm manufacturing process after Westmere. Sandy Bridge is the latest 'tock' in Intel's 'tick-tock' CPU development process. It includes Hyper-Threading, which enables multiple threads to run on each CPU core and so improves overall performance on threaded software, and a new version of Turbo Boost, which allows all cores to overclock simultaneously for ten to twenty seconds if the chip was previously running cool. The Core i7-2600K will boost to 3.8GHz, if doing so will not overheat the chip.