Opteron 8220 SE (F2) 's Advantages
Higher specification of memory (667 vs 3)
Higher base frequency (2.8GHz vs 2.7GHz)
Lower TDP (120W vs 130W)
Intel Xeon E5 2680 's Advantages
Released 5 years and 7 months late
Newer PCIe version (3 vs 1)
More modern manufacturing process (32nm vs 90nm)