Xeon E 2176M 's Advantages
Higher base frequency (2.7GHz vs 2.2GHz)
Lower TDP (45W vs 250W)
Xeon 6731E 's Advantages
Released 6 years and 2 months late
Higher specification of memory (5600 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (96MB vs 12MB)
More modern manufacturing process (5nm vs 14nm)