The Core i7 6700K is Intels latest Skylake flagship processor. It replaces the hugely successful i7 4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchange but the improved manufacturing process brings a small reduction in TDP. Owners of any unlocked K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely.
Manufacturer SKU: BX80662I76700K CORE i7-6700K 4.0GHZ SOCKET LGA1151 8MB CACHE UNLOCKED BOXED PROCESSOR - WITHOUT HEATSINK/FAN http://ark.intel.com/products/88195/Intel-Core-i7-6700K-Processor-8M-Cache-up-to-4_20-GHz?q=%20i7-6700K