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 12700K 's Advantages
Released 2 years late
Integrated graphics card
Higher specification of memory (4800 vs 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)