Xeon EC5549 's Advantages
Released 3 years and 6 months late
Higher specification of memory (1333 vs 667)
Newer PCIe version (2 vs 1)
More modern manufacturing process (45nm vs 90nm)
Lower TDP (85W vs 95W)
Opteron 8218 (F3) 's Advantages
Higher base frequency (2.6GHz vs 2.533GHz)