Intel Xeon E5 1650 v2 's Advantages
Higher base frequency (3.5GHz vs 2.6GHz)
Intel Xeon E5 2640 v3 's Advantages
Released 1 years late
Higher specification of memory (DDR4-1866 vs DDR3-1866)
Larger L3 cache size (20MB vs 12MB)
Lower TDP (90W vs 130W)