https://wccftech.com/intel-12th-gen-alder-lake-non-k-cpu-lineup-specifications-leaked-include-core-i9-12900-i7-12700-i5-12600-i5-12400-chips/

The specifications of Intel's 12th Generation non-K Alder Lake CPU family have leaked out & show the differences in clocks and core configurations between the unlocked and locked parts. The leak was reported by Momomo_US and includes specifications of six different SKUs.

As expected, the Core i9 and Core i7 variants will retain the same core configuration as their 'K' series siblings. The main differences will come in the form of clock speeds and TDPs. Starting with the Core i9-12900(F), we are getting the same 16 core & 24 thread configuration with 30 MB of L3 cache. The clock speeds have been dialed back to 2.40 GHz base clock for the P-Cores and 1.80 GHz base clock for the E-Cores. The max boost clock will be pushed back by 100 MHz to 5.1 GHz. That has to be done to accommodate the lower 65W TDP versus the 125W (241 MTP) on the unlocked SKU.