AMD EPYC 9684X 's Advantages
Released 6 years late
Higher specification of memory (DDR5-4800 vs DDR4-2666)
Newer PCIe version (5 vs 3)
Higher base frequency (2.55GHz vs 2.4GHz)
Larger L3 cache size (1152MB vs 64MB)
More modern manufacturing process (5nm vs 14nm)
AMD EPYC 7351 's Advantages
Lower TDP (170W vs 400W)