Amazon.com: Intel Core I5-7640X Processor Extreme Edition (6M Cache, Up To 4.20 Ghz) Fc-Lga1 : Electronics
AnandTech The Intel Kaby Lake-X i7 7740X and i5 7640X Review: The New Single-Threaded Champion, OC to 5GHz using BAPCo's SYSmark 2014 SE Benchmark – BAPCo