Intel Xeon E5 1660 v2 's Advantages
Higher base frequency (3.7GHz vs 2.8GHz)
Lower TDP (130W vs 165W)
Intel Xeon E5 2698A v3 's Advantages
Released 1 years and 2 months late
Higher specification of memory (2133 vs 1866)
Larger L3 cache size (40MB vs 15MB)