Intel Xeon E5 2628 v3 's Advantages
Released 3 years and 5 months late
Higher specification of memory (2133 vs 3)
Larger L3 cache size (20MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (85W vs 95W)
Intel Xeon E3 1275 's Advantages
Higher base frequency (3.4GHz vs 2.5GHz)