Intel Xeon X5647 's Advantages
Released 4 years late
Higher specification of memory (3 vs 2)
Newer PCIe version (2 vs 1)
Higher base frequency (2.933GHz vs 2.6GHz)
More modern manufacturing process (32nm vs 90nm)
Opteron 2218 HE 's Advantages
Lower TDP (68W vs 130W)