Intel Xeon E5 1607 v2 's Advantages
Released 2 years and 5 months late
Higher specification of memory (1600 vs 3)
Larger L3 cache size (10MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Intel Xeon E3 1275 's Advantages
Higher base frequency (3.4GHz vs 3GHz)
Lower TDP (95W vs 130W)