Intel Xeon E5 2669 v3 's Advantages
Lower TDP (120W vs 129W)
Xeon D 2799 's Advantages
Released 7 years and 1 months late
Higher specification of memory (3200 vs 2133)
Newer PCIe version (4 vs 3)
Higher base frequency (2.4GHz vs 2.3GHz)
More modern manufacturing process (10nm vs 22nm)