Intel Xeon E5507 's Advantages
Higher base frequency (2.266GHz vs 2GHz)
Lower TDP (80W vs 170W)
AMD EPYC 7401 's Advantages
Released 7 years and 3 months late
Higher specification of memory (2666 vs 3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (64MB vs 4MB)
More modern manufacturing process (14nm vs 45nm)