Intel Core i5 13400 's Advantages
Released 6 years and 8 months late
Integrated graphics card
Higher specification of memory (4800 vs 2133)
Newer PCIe version (5.0 vs 3.0)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (65W vs 140W)
Intel Core i7 6900K 's Advantages
Higher base frequency (3.2GHz vs 2.5GHz)