AMD Ryzen 4000 Zen 3 will be compatible with Socket AM4, but it is end of the road for X470, B450, and below motherboard owners - NotebookCheck.net News
AMD's 7nm Ryzen 4000 CPUs are here to take on Intel's 10nm Ice Lake laptop chips - The Verge
AMD Ryzen 4000 Zen 2 Desktop CPU With Integrated Radeon GPU And B550 Motherboard Leaks | HotHardware
Ryzen 4000 CPUs explained: How AMD optimized Zen 2 for laptops | PCWorld
AMD is returning to budget CPUs with $99-and-up Ryzen 4000 and 5000 chips | Ars Technica
Ryzen 4000 Mobile – 7nm Zen 2 & Vega Explained | KitGuru
AMD Ryzen 9 4900HS Review | TechSpot
AMD Details Renoir: The Ryzen Mobile 4000 Series 7nm APU Uncovered
Codename Vermeer: AMD's Ryzen 4000 desktop processors could be released in September - NotebookCheck.net News
AMD Has Announced Zen 2 Ryzen 4000 7nm mobile Processors: Up To Eight Cores With Ryzen 7 4800H
AMD announces new affordable Ryzen 5000 and 4000 series processors - GSMArena.com news