AMD EPYC 9734 's Advantages
Released 10 years and 7 months late
Higher specification of memory (DDR5-4800 vs DDR3)
Newer PCIe version (5 vs 2)
Larger L3 cache size (256MB vs 8MB)
More modern manufacturing process (5nm vs 32nm)
Opteron 6380 's Advantages
Higher base frequency (2.5GHz vs 2.2GHz)
Lower TDP (115W vs 340W)