AMD Ryzen 7 3800X 's Advantages
Higher specification of memory (3200 vs 2666)
Larger memory bandwidth (47.68GB/s vs 41.6GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.9GHz vs 2.9GHz)
Larger L3 cache size (32MB vs 12MB)
More modern manufacturing process (7nm vs 14nm)
Intel Core i5 10400F 's Advantages
Released 10 months late
Lower TDP (65W vs 105W)