Intel Xeon X5647 's Advantages
Higher base frequency (2.933GHz vs 2GHz)
Lower TDP (130W vs 240W)
AMD EPYC 7663 's Advantages
Released 10 years and 1 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (256MB vs 12MB)