The unnamed 8-core/16-thread CPU is part of the Zen+ 12nm wave of new processors that should launch this April. Boost clocks can reach up to an impressive 4.35 GHz, but the performance is marginally better when compared to last year's Ryzen 7 1700X/1800X or Intel's Core I7-8700K models.
https://www.notebookcheck.net/AMD-Ryzen-7-2000-series-8-core-16-thread-CPU-perfomance-gets-leaked.287574.0.html