All core clock of 3.5 GHz with a boost frequency of 4.7 GHz. 105W TDP. It will be interesting to see how latency is affected for core-core communication with multiple chiplets. Both the R9 models sport multiple chiplets.
https://www.anandtech.com/show/14516/amd-16-core-ryzen-9-3950x-up-to-4-7-ghz-105w-coming-september