Intel Xeon E5 4640 's Advantages
Higher base frequency (2.4GHz vs 2.2GHz)
Lower TDP (95W vs 200W)
AMD EPYC 7552 's Advantages
Released 7 years and 3 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (192MB vs 20MB)