Intel Xeon E5 2650 v2 's Advantages
Higher base frequency (2.6GHz vs 2.2GHz)
Lower TDP (95W vs 105W)
Intel Xeon E5 2658A v3 's Advantages
Released 1 years and 4 months late
Higher specification of memory (DDR4-2133 vs DDR3)
Larger L3 cache size (30MB vs 20MB)