Xeon EC5549 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (85W vs 87W)
Intel Xeon E3 1290 v2 's Advantages
Released 2 years and 3 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3.7GHz vs 2.533GHz)
More modern manufacturing process (22nm vs 45nm)