Intel Xeon E5 2630 v2 's Advantages
Lower TDP (80W vs 165W)
Intel Xeon E7 8891 v3 's Advantages
Released 1 years and 9 months late
Higher specification of memory (1866 vs 3)
Higher base frequency (2.8GHz vs 2.6GHz)
Larger L3 cache size (45MB vs 15MB)