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 5900HX is now PassMark's highest ranking mobile CPU - VideoCardz.com
AMD Ryzen 9 4900HS 特別版曝光加速4.4GHz、又是ASUS 獨佔? - XFastest Hong Kong
AMD includes the Ryzen 9 4900H and Ryzen 9 4900HS in the Renoir Ryzen 4000 APU lineup: faster base clocks than the Core i9-9880H at 45W TDP - NotebookCheck.net News
4900HS vs 9980HK vs 9750H vs 3750H vs 9300H - CPU Comparison - YouTube