This is a Core i7-2600k processor. Was used 4 years in a gaming PC and at times was lightly overclocked. Always was cooled by a Corsair H60 closed loop liquid cooler, so there has never been any overheating concerns. The processor worked correctly when removed from the build it was a part of. Was removed and parted out due to an upgrade to newer processor. The Core i7-2600k is an LGA 1155 socket processor.