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 9 4900H 8 Core CPU Spotted In ASUS's Gaming Notebooks
AMD Ryzen 9 4900H coming for gaming, creator laptops this spring - CNET