Opteron 1389 's Advantages
Higher base frequency (2.9GHz vs 2.45GHz)
Lower TDP (115W vs 125W)
AMD EPYC 8124P 's Advantages
Released 14 years and 3 months late
Higher specification of memory (4800 vs 1333)
Newer PCIe version (5 vs 2)
Larger L3 cache size (64MB vs 6MB)
More modern manufacturing process (5nm vs 45nm)