Xeon D 2775TE 's Advantages
Released 8 years and 5 months late
Higher specification of memory (2933 vs 1866)
Newer PCIe version (4 vs 3)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (100W vs 130W)
Intel Xeon E5 1680 v2 's Advantages
Higher base frequency (3GHz vs 2GHz)