AMD EPYC 9645 's Advantages
Released 7 years and 4 months late
Higher specification of memory (6000 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (256MB vs 64MB)
More modern manufacturing process (3nm vs 14nm)
AMD EPYC 7351P 's Advantages
Higher base frequency (2.4GHz vs 2.3GHz)
Lower TDP (170W vs 320W)