Intel Xeon E5 2650 v3 's Advantages
Higher specification of memory (2133 vs 4)
Larger L3 cache size (25MB vs 8MB)
Intel Xeon E3 1280 v5 's Advantages
Released 1 years and 1 months late
Higher base frequency (3.7GHz vs 2.3GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (80W vs 105W)