Intel Xeon E3 1275 v5 's Advantages
Released 1 years and 1 months late
Higher base frequency (3.6GHz vs 2.6GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (80W vs 105W)
Intel Xeon E5 2660 v3 's Advantages
Higher specification of memory (2133 vs 2133)
Larger L3 cache size (25MB vs 8MB)