Intel Xeon X5677 's Advantages
Higher base frequency (3.466GHz vs 2.6GHz)
Lower TDP (130W vs 280W)
AMD EPYC 7H12 's Advantages
Released 9 years and 6 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (256MB vs 12MB)
More modern manufacturing process (7nm vs 32nm)