Intel Core i5 6600 's Advantages
Integrated graphics card
Higher base frequency (3.3GHz vs 2.5GHz)
Intel Core i5 13400F 's Advantages
Released 7 years and 4 months late
Higher specification of memory (4800 vs 2133)
Larger memory bandwidth (76.8GB/s vs 34.1GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (20MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)