The 64-core AMD Ryzen Threadripper PRO 5995WX has made it onto PassMark's CPU Mark chart for high-end CPUs, and in the process has produced a score that has demolished the competition. The Ryzen Threadripper PRO 5995WX is so dominant that it manages a +23.19% leap over the 64-core AMD EPYC 7763 server chip.
https://www.notebookcheck.net/AMD-Ryzen-Threadripper-PRO-5995WX-annihilates-the-competition-on-PassMark-leaving-the-EPYC-7763-over-20-000-points-behind.608143.0.html
Not mentioned in the article but this CPU will also be vendor locked by the OEM (Lenovo) using the new tech from AMD.
So no transplants from P620's into the board of your choosing until the OEM exclusive ends with Lenovo.