Intel Xeon E7 8891 v3 's Advantages
Larger L3 cache size (45MB vs 30MB)
Lower TDP (165W vs 270W)
Intel Xeon w5 3425 's Advantages
Released 7 years and 8 months late
Higher specification of memory (4800 vs 1866)
Newer PCIe version (5 vs 3)
Higher base frequency (3.2GHz vs 2.8GHz)
More modern manufacturing process (10nm vs 22nm)