AMD Ryzen 9 4900HS revealed to have 3.0 GHz base clock and 4.4 GHz boost clock; trails behind Ryzen 7 4800H in first 3DMark 11 tests - NotebookCheck.net News
AMD Ryzen 7 4800U vs AMD Ryzen 9 4900H: What is the difference?
3DMark Listings Confirm Existence of the AMD Ryzen 9 4900HS | Hardware Times
Lenovo lists AMD Ryzen 4900U processor in new Yoga Slim laptops | KitGuru
AMD Ryzen 7 4700G surfaces with double the cores of the Ryzen 3000 APU flagship | TechRadar
AMD Ryzen 9 4900U Processor Benchmarks and Specs - GadgetVersus