Intel Core i5 10400 's Advantages
Higher base frequency (2.9GHz vs 2.8GHz)
Intel Core i5 11600 's Advantages
Released 10 months late
Better graphics card performance
Higher specification of memory (DDR4-3200 vs DDR4-2666)
Larger memory bandwidth (50GB/s vs 41.6GB/s)
Newer PCIe version (4.0 vs 3.0)