Xeon EC5549 's Advantages
Higher base frequency (2.533GHz vs 2.2GHz)
Intel Xeon E5 1428L v2 's Advantages
Released 3 years and 11 months late
Newer PCIe version (3 vs 2)
Larger L3 cache size (15MB vs 8MB)
More modern manufacturing process (22nm vs 45nm)
Lower TDP (60W vs 85W)