TechPowerUp takes a look at the AMD Ryzen 9 3900XT
A quote from the article:
Ryzen 9 3900XT is the flagship of the new AMD Ryzen XT series. It comes with higher boost clocks, and can sustain them better, which helps with single-threaded workloads. In our Ryzen 9 3900XT review we also saw better overclocking and lower temperatures than on the original Ryzen 9 3900X.AMD Ryzen 9 3900XT Review