AMD EPYC 7543P 's Advantages
Released 9 years and 4 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 2)
Higher base frequency (2.8GHz vs 2.2GHz)
Larger L3 cache size (256MB vs 16MB)
More modern manufacturing process (7nm vs 32nm)
Opteron 6274 's Advantages
Lower TDP (115W vs 225W)