Intel Xeon E5 1650 's Advantages
Released 2 years late
Newer PCIe version (3 vs 2)
Higher base frequency (3.2GHz vs 1.733GHz)
More modern manufacturing process (32nm vs 45nm)
Xeon E6510 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (105W vs 130W)