Intel Core i5 13400 's Advantages
Released 5 years and 3 months late
Higher specification of memory (4800 vs 2666)
Larger memory bandwidth (76.8GB/s vs 41.6GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (20MB vs 9MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (65W vs 95W)
Intel Core i5 8600K 's Advantages
Better graphics card performance
Higher base frequency (3.6GHz vs 2.5GHz)