Intel Xeon X5647 's Advantages
Released 4 years and 6 months late
Higher specification of memory (3 vs 2)
Newer PCIe version (2 vs 1)
Higher base frequency (2.933GHz vs 2.8GHz)
More modern manufacturing process (32nm vs 90nm)
Opteron 2220 SE (F2) 's Advantages
Lower TDP (119W vs 130W)