Intel Xeon E5649 's Advantages
Lower TDP (80W vs 280W)
AMD EPYC 7H12 's Advantages
Released 8 years and 7 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 2)
Higher base frequency (2.6GHz vs 2.533GHz)
Larger L3 cache size (256MB vs 12MB)