Intel Xeon E7 8891 v3 's Advantages
Higher base frequency (2.8GHz vs 2.4GHz)
Larger L3 cache size (45MB vs 30MB)
Xeon D 2799 's Advantages
Released 6 years and 8 months late
Higher specification of memory (3200 vs 1866)
Newer PCIe version (4 vs 3)
More modern manufacturing process (10nm vs 22nm)
Lower TDP (129W vs 165W)