Intel Core i5 11400 's Advantages
Released 4 years and 10 months late
Integrated graphics card
Higher specification of memory (DDR4-3200 vs DDR4-2133)
Newer PCIe version (4.0 vs 3.0)
Lower TDP (65W vs 140W)
Intel Core i7 6900K 's Advantages
Larger memory bandwidth (76.8GB/s vs 50GB/s)
Higher base frequency (3.2GHz vs 2.6GHz)
Larger L3 cache size (20MB vs 12MB)