Opteron 8220 SE (F2) 's Advantages
Higher specification of memory (667 vs 3)
Lower TDP (120W vs 130W)
Intel Xeon E5 1660 's Advantages
Released 5 years and 7 months late
Newer PCIe version (3 vs 1)
Higher base frequency (3.3GHz vs 2.8GHz)
More modern manufacturing process (32nm vs 90nm)