Intel Xeon E5 2450 v2 's Advantages
Higher base frequency (2.5GHz vs 2.2GHz)
Lower TDP (95W vs 105W)
Xeon E5 2650 v4 's Advantages
Released 2 years and 6 months late
Higher specification of memory (2133 vs 3)
Larger L3 cache size (30MB vs 20MB)
More modern manufacturing process (14nm vs 22nm)