Intel Core i5 7400 's Advantages
Integrated graphics card
Lower TDP (65W vs 105W)
AMD Ryzen 7 5800X3D 's Advantages
Released 5 years and 2 months late
Higher specification of memory (3200 vs 2400)
Larger memory bandwidth (47.68GB/s vs 35.76GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.4GHz vs 3.0GHz)
Larger L3 cache size (96MB vs 6MB)
More modern manufacturing process (7nm vs 14nm)