AMD EPYC 9684X 's Advantages
Released 2 years and 3 months late
Higher specification of memory (DDR5-4800 vs DDR4-3200)
Newer PCIe version (5 vs 4)
Higher base frequency (2.55GHz vs 2.45GHz)
Larger L3 cache size (1152MB vs 256MB)
More modern manufacturing process (5nm vs 7nm)
AMD EPYC 7763 's Advantages
Lower TDP (280W vs 400W)