AMD EPYC 9645 's Advantages
Released 6 years and 8 months late
Higher specification of memory (6000 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (256MB vs 16MB)
More modern manufacturing process (3nm vs 14nm)
AMD EPYC Embedded 3151 's Advantages
Higher base frequency (2.7GHz vs 2.3GHz)
Lower TDP (45W vs 320W)