Opteron 1381 's Advantages
Lower TDP (115W vs 200W)
AMD EPYC 9124 's Advantages
Released 13 years and 5 months late
Higher specification of memory (4800 vs 1333)
Newer PCIe version (5 vs 2)
Higher base frequency (3GHz vs 2.5GHz)
Larger L3 cache size (64MB vs 6MB)
More modern manufacturing process (5nm vs 45nm)