AMD EPYC 7351 's Advantages
Lower TDP (170W vs 200W)
AMD EPYC 9254 's Advantages
Released 5 years and 5 months late
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3)
Higher base frequency (2.9GHz vs 2.4GHz)
Larger L3 cache size (128MB vs 64MB)
More modern manufacturing process (5nm vs 14nm)