Intel Core i9 10900X 's Advantages
Larger memory bandwidth (93.8GB/s vs 76.8GB/s)
Higher base frequency (3.7GHz vs 3.6GHz)
Intel Core i7 12700KF 's Advantages
Released 2 years late
Higher specification of memory (DDR5-4800 vs DDR4-2933)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (25MB vs 20MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (125W vs 165W)