AMD - Wikipedia
… AMD released the Zen-based high-end Ryzen 7 "Summit Ridge" series CPUs on March 2, 2017, 207 mid-range Ryzen 5 series CPUs on April 11, 2017, and entry level Ryzen 3 series CPUs on July 27, 2017. 208 AMD later released the Epyc line of Zen derived server processors for 1P and 2P systems. …