Intel Core i7 7800X 3.5GHz Six Core 8.25MB 140W

Background on Intel Core X-series CPU

Intel's enthusiast-class Core i7 and i9 processors represent the top-end of their consumer CPU line, and bridge the gap between the more mainstream chips and the Xeon server-grade models. These processors range from six to eighteen cores, with base clock speeds of 2.6 to 3.6GHz - and turbo boost speeds of 4GHz or more. The combination of high core counts with high clock frequencies allow these processors to excel at both single and multi-threaded workloads.

William George (Puget Labs) Says:
These processors were codenamed Skylake-X, when first announced, but Intel seems to have standardized on calling them Core X-series processors. There are also some Kaby Lake-X chips that share the same socket and are compatible with some of the same motherboards, but they have fewer memory channels and PCI-E lanes, so to avoid confusion and situations where lots of motherboard features are disabled we are not currently offering them.