Both clock speeds and power consumption are up, as we knew they would be, with the highest turbo clock belonging to the R9 7950X at 5.7 GHz, and the four announced SKUs ranging from 105W to 170W TDPs. One assumes that 65W non-X parts with lower clocks will follow at some point.
As to performance, we await independent testing but AMD seems confident in their IPC increases, which are reportedly up around 13% compared to Zen 3, with a total per-core uplift (including the higher clocks and move to faster DDR5 memory) bringing this up to a “29% total single thread performance gain”.