AMD's Ryzen 9 9950X3D and 9900X3D CPUs are rumoured to launch at the end of March at roughly the same time as the RX 9070-series GPUs
As for the chips themselves, the specs are pretty monstrous. The 9950X3D is a 170 W TDP chip with 16-cores and 32-threads with a boost clock of 5.7 Ghz and 144 MB of total cache, whereas the 9900X3D has 12-cores, 24-threads, and 140 MB of cache, with a slightly slower 5.5 GHz boost clock.