Bought and installed mid 2018. Great condition no box. Price flexible upgrading to i8 and thats the reason of selling. The Intel Core i7-7700K 4.2 GHz Quad-Core LGA 1151 Processor has a base speed of 4.2 GHz up to 4/5 GHz, with features such as Intel Hyper-Threading and Intel Turbo Boost 2.0 technology. Having 4 cores allows the processor to run multiple programs simultaneously without slowing down the system, while the 8 threads allow a basic ordered sequence of instructions to be passed through or processed by a single CPU core. This processor also supports up to 64GB of DDR4-2400/2133 and DDR3L 1600/1333 RAM at 1.35V, has AES New Instructions, 14nm lithography, and utilizes 7th Generation (Kaby Lake) technology.