Intel Core i7 7800X 's Advantages
Larger memory bandwidth (79.47GB/s vs 47.68GB/s)
AMD Ryzen 7 3800X 's Advantages
Released 2 years and 2 months late
Higher specification of memory (3200 vs 2400)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (3.9GHz vs 3.5GHz)
Larger L3 cache size (32MB vs 8MB)
More modern manufacturing process (7nm vs 14nm)
Lower TDP (105W vs 140W)