AMD EPYC 9555 's Advantages
Released 10 years and 9 months late
Higher specification of memory (6000 vs 1600)
Newer PCIe version (5 vs 2)
Higher base frequency (3.2GHz vs 2.3GHz)
Larger L3 cache size (256MB vs 8MB)
More modern manufacturing process (4nm vs 32nm)
Opteron 6338P 's Advantages
Lower TDP (99W vs 360W)