AMD Announces Ryzen 9 4900H and 4900HS: The Halo 35 W and 45 W Mobile APUs
AMD Ryzen 9 4900U APU gets past the rumor stage by making a first appearance on UserBenchmark - NotebookCheck.net News
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
AMD's Mobile Ryzen 9 4900U Listed by Lenovo | TechPowerUp
AMD Ryzen 9 4900U Specs - GadgetVersus
AMD Ryzen 9 4900H : 8C/16T High Performance Mobile APU! | Tech ARP