AMD Ryzen 9 7900X vs 3900X // Test in 9 Games - YouTube
AMD Ryzen 9 5900X vs Intel Core i9-9900X: What is the difference?
AMD Ryzen Threadripper Zen 2 scores over 2x the Ryzen 9 3900X in Geekbench; more than 2.5x times higher than the Threadripper 2950X and Core i9-9900K too - NotebookCheck.net News
AMD Ryzen 9 5900X Specs | TechPowerUp CPU Database