Intel Core i5 13600 's Advantages
Released 5 years and 3 months late
Better graphics card performance
Higher specification of memory (5600 vs 2666)
Larger memory bandwidth (89.6GB/s vs 41.6GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (24MB vs 9MB)
More modern manufacturing process (10nm vs 14nm)
Intel Core i5 8400 's Advantages
Higher base frequency (2.8GHz vs 2.7GHz)