AMD Ryzen 9 4900U APU gets past the rumor stage by making a first appearance on UserBenchmark - NotebookCheck.net News
AMD Ryzen 9 4900U Review - CPUAgent
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