Intel Xeon E5 4650 v3 's Advantages
Lower TDP (105W vs 250W)
Xeon 6731E 's Advantages
Released 9 years late
Higher specification of memory (DDR5-5600 vs DDR4-2133)
Newer PCIe version (5 vs 3)
Higher base frequency (2.2GHz vs 2.1GHz)
Larger L3 cache size (96MB vs 30MB)
More modern manufacturing process (7nm vs 22nm)