Intel Xeon E3 1265L v2 's Advantages
Released 2 years and 3 months late
Newer PCIe version (3 vs 2)
Higher base frequency (2.5GHz vs 2GHz)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (45W vs 85W)
Xeon EC5509 's Advantages
Higher specification of memory (1066 vs 3)