Intel Xeon E5 2697 v2 's Advantages
Higher base frequency (2.7GHz vs 2GHz)
Lower TDP (130W vs 135W)
Intel Xeon E5 2698B v3 's Advantages
Released 1 years and 4 months late
Higher specification of memory (2133 vs 3)
Larger L3 cache size (40MB vs 30MB)