Intel Core i9 10900K 's Advantages
Integrated graphics card
Higher base frequency (3.7GHz vs 2.4GHz)
Intel Core i9 12900 's Advantages
Released 1 years and 8 months late
Higher specification of memory (4800 vs 2933)
Larger memory bandwidth (76.8GB/s vs 45.8GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (30MB vs 20MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (65W vs 125W)