Intel Xeon E5 2693 v3 's Advantages
Higher specification of memory (2133 vs 1600)
Higher base frequency (2.8GHz vs 1.6GHz)
Larger L3 cache size (30MB vs 15MB)
Intel Xeon E5 2603 v3 's Advantages
Released 113 years and 8 months late
Lower TDP (85W vs 160W)