AMD Ryzen 7 5800X 's Advantages
Newer PCIe version (4.0 vs 3)
Larger L3 cache size (32MB vs 16MB)
AMD Ryzen 5 PRO 5655G 's Advantages
Released 3 years and 7 months late
Larger memory bandwidth (51.2GB/s vs 47.68GB/s)
Higher base frequency (3.9GHz vs 3.8GHz)
Lower TDP (65W vs 105W)