Xeon D 2775TE 's Advantages
Released 7 years and 5 months late
Higher specification of memory (2933 vs 2133)
Newer PCIe version (4 vs 3)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (100W vs 120W)
Intel Xeon E5 2686 v3 's Advantages
Larger L3 cache size (45MB vs 25MB)