Opteron 2220 SE (F2) 's Advantages
Higher base frequency (2.8GHz vs 2.266GHz)
Intel Xeon L5640 's Advantages
Released 3 years and 7 months late
Higher specification of memory (3 vs 2)
Newer PCIe version (2 vs 1)
More modern manufacturing process (32nm vs 90nm)
Lower TDP (60W vs 119W)