AMD's Ryzen 4000 laptop CPUs aim to topple Intel's mobile crown | PCWorld
AMD's first 7nm Ryzen 4000 desktop chips bring the fight to Intel - The Verge
AMD announces the Ryzen 4000G series Renoir APUs for pre-built OEM desktops; claims a slam dunk when compared with Intel 9th gen Coffee Lake - NotebookCheck.net News