Intel Core i5 12600K 's Advantages
Released 3 years late
Better graphics card performance
Higher specification of memory (DDR5-4800 vs DDR4-2666)
Larger memory bandwidth (76.8GB/s vs 41.6GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (3.7GHz vs 3.6GHz)
Larger L3 cache size (20MB vs 16MB)
More modern manufacturing process (10nm vs 14nm)
Intel Core i9 9900K 's Advantages
Lower TDP (95W vs 125W)