AMD EPYC 7401P 's Advantages
Released 4 years and 7 months late
Higher specification of memory (DDR4-2666 vs DDR3)
Newer PCIe version (3 vs 2)
Higher base frequency (2GHz vs 1.8GHz)
Larger L3 cache size (64MB vs 8MB)
More modern manufacturing process (14nm vs 32nm)
Opteron 6366 HE 's Advantages
Lower TDP (85W vs 170W)