AMD details Ryzen 4000 battery life optimizations: better system awareness leads to increased run times compared to the Core i7-1065G7 - NotebookCheck.net News
AMD's first 7nm Ryzen 4000 desktop chips bring the fight to Intel - The Verge
CES 2020: AMD Brings Zen 2 To Laptops With AMD Ryzen 4000 Series – Pokde.Net
AMD's Mobile Ryzen 4000 Series Is Looking Good So Far - Moor Insights & Strategy
AMD announces new affordable Ryzen 5000 and 4000 series processors - GSMArena.com news