E-Katalog, a Russian retailer, has put the entire line of Ryzen 3000 desktop CPUs (the 'Matisse' series) on its website. These listings may indeed just be placeholders; on the other hand, they contain detailed information on processors such as the Ryzen 9 3800X. It suggests that the new generation has seriously outpaced its predecessor, especially at the higher end.
https://www.notebookcheck.net/AMD-Ryzen-3000-series-desktop-processors-detailed-in-potentially-massive-leak.390426.0.html