Opteron 8220 SE (F3) 's Advantages
Higher base frequency (2.8GHz vs 2.133GHz)
Xeon EC3529 's Advantages
Released 3 years and 6 months late
Higher specification of memory (1066 vs 667)
Newer PCIe version (2 vs 1)
More modern manufacturing process (45nm vs 90nm)
Lower TDP (65W vs 120W)