Intel Core i7 8700 's Advantages
Lower TDP (65W vs 120W)
AMD Ryzen 7 7800X3D 's Advantages
Released 5 years and 3 months late
Better graphics card performance
Higher specification of memory (5200 vs 2666)
Larger memory bandwidth (83.2GB/s vs 41.6GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (4.4GHz vs 3.2GHz)
Larger L3 cache size (96MB vs 12MB)
More modern manufacturing process (5nm vs 14nm)