Intel Xeon E3 1225 v3 's Advantages
Released 3 years and 4 months late
Higher specification of memory (1600 vs 1333)
Newer PCIe version (3 vs 2)
Higher base frequency (3.2GHz vs 2.266GHz)
Larger L3 cache size (8MB vs 4MB)
More modern manufacturing process (22nm vs 45nm)
Xeon EC5539 's Advantages
Lower TDP (65W vs 84W)