Excavator (microarchitecture)
The Excavator Family 15h was an x86-64 CPU microarchitecture developed by AMD to for use in the company's CPU and APU CPUs, with commercial sales beginning in 2015. Excavator is the fourth and last microarchitecture derived from Bulldozer, and shares the same 28 nm manufacturing process with its predecessor, the Steamroller.
Source: Wikipedia — Excavator (microarchitecture) (CC BY-SA 4.0)