https://wccftech.com/intel-core-i9-12900k-alder-lake-16-core-cpu-benchmarks-faster-than-amd-ryzen-9-5950x-rumor/

Alleged performance benchmarks of Intel's Core i9-12900K Alder Lake flagship CPU have leaked out and it looks like AMD's Ryzen 5000 chips are in for a massive beating. Benchmarks shared by OneRaichu show how well the CPU performs in the Cinebench R20 test making it easy for us to do a comparison between existing Intel and AMD CPUs.

The Intel Core i9-12900K that was tested is allegedly a QS 'Qualifaction Sample' chip and hence, the performance stated here may not be final as there are certain firmware updates along with the OS-specific optimizations needed to get the full potential out of the Alder Lake's hybrid architecture. It looks like the performance was measured on a very early test setup which featured a liquid cooler though other specifications such as memory and motherboard haven't been mentioned. It is likely that this chip is part of the recent inventory that was sold in the back-channel market as reported here.