Opteron 8224 SE 's Advantages
Higher base frequency (3.2GHz vs 2.4GHz)
Lower TDP (120W vs 225W)
AMD EPYC 7642 's Advantages
Released 12 years late
Higher specification of memory (DDR4-3200 vs DDR2-667)
Newer PCIe version (4 vs 1)
More modern manufacturing process (7nm vs 90nm)