Intel Xeon E5 1681 v3 's Advantages
Higher base frequency (2.9GHz vs 2.4GHz)
Larger L3 cache size (25MB vs 10MB)
Xeon D 1715TER 's Advantages
Released 7 years and 5 months late
Higher specification of memory (2667 vs 2133)
Newer PCIe version (4 vs 3)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (50W vs 135W)