Opteron 2220 SE (F3) 's Advantages
Higher base frequency (2.8GHz vs 2GHz)
Intel Xeon E5 4603 's Advantages
Released 5 years and 9 months late
Higher specification of memory (3 vs 2)
Newer PCIe version (3 vs 1)
More modern manufacturing process (32nm vs 90nm)
Lower TDP (95W vs 119W)