AMD introduces Ryzen 4000 mobile, the world's first 7nm x86 notebook processors - Neowin
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
AMD details Ryzen Mobile 4000: Performance, architecture, features and better quality laptops | TechSpot
AMD might be delaying Zen 3 based Ryzen 4000 processors to 2021, rumors suggest
Ryzen 4000 CPUs explained: How AMD optimized Zen 2 for laptops | PCWorld
AM4's Last Hurrah: AMD Unveils 7 New Ryzen 4000 and 5000 CPUs at Nice Prices | PCMag