Intel Xeon E5 4660 v3 's Advantages
Lower TDP (120W vs 250W)
Xeon 6731E 's Advantages
Released 9 years late
Higher specification of memory (5600 vs 2133)
Newer PCIe version (5 vs 3)
Higher base frequency (2.2GHz vs 2.1GHz)
Larger L3 cache size (96MB vs 35MB)
More modern manufacturing process (5nm vs 22nm)