An engineering sample of an AMD Ryzen Threadripper 3990X has turned up on UserBenchmark and offered up huge scores that still have room for improvement. The 64-core part was a component in a system that also featured the Prime TRX40-Pro motherboard from Asus and Nvidia's GeForce RTX 2080 Ti. Unsurprisingly, the measured 64-core score was massive.
https://www.notebookcheck.net/AMD-Ryzen-Threadripper-3990X-engineering-sample-makes-startling-initial-showing-on-UserBenchmark.452738.0.html