Intel Xeon E5645 's Advantages
Higher base frequency (2.4GHz vs 2.2GHz)
Lower TDP (80W vs 200W)
AMD EPYC 7552 's Advantages
Released 9 years and 5 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (192MB vs 12MB)