Intel Core i7 12700K 's Advantages
Released 4 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)
Larger L3 cache size (25MB vs 9MB)
More modern manufacturing process (10nm vs 14nm)
Intel Core i5 8600K 's Advantages
Lower TDP (95W vs 125W)