Opteron 8220 SE (F2) 's Advantages
Higher specification of memory (667 vs 3)
Lower TDP (120W vs 130W)
Intel Xeon X5647 's Advantages
Released 4 years and 6 months late
Newer PCIe version (2 vs 1)
Higher base frequency (2.933GHz vs 2.8GHz)
More modern manufacturing process (32nm vs 90nm)