Intel Core i9 12900K 's Advantages
Higher base frequency (32GHz vs 2.5GHz)
Intel Core Ultra 9 285 's Advantages
Released 3 years late
Better graphics card performance
Higher specification of memory (5600 vs 4800)
Larger memory bandwidth (102.4GB/s vs 76.8GB/s)
Newer PCIe version (5 vs 5.0)
Larger L3 cache size (36MB vs 30MB)
More modern manufacturing process (7nm vs 10nm)