Intel Xeon E5645 's Advantages
Higher base frequency (2.4GHz vs 2.2GHz)
Lower TDP (80W vs 200W)
EPYC 7552 's Advantages
Released 9 years and 5 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
Larger L3 cache size (192MB vs 12MB)
More modern manufacturing process (7nm vs 32nm)