Intel Core i9 12900KF 's Advantages
Newer PCIe version (5.0 vs 4)
Higher base frequency (3.2GHz vs 1.2GHz)
Larger L3 cache size (30MB vs 18MB)
Intel Core Ultra 5 125HL 's Advantages
Released 2 years and 6 months late
Higher specification of memory (5600 vs 4800)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
More modern manufacturing process (7nm vs 10nm)
Lower TDP (45W vs 125W)