Opteron 2216 HE (F3) 's Advantages
Lower TDP (68W vs 95W)
Xeon X3450 's Advantages
Released 3 years and 1 months late
Higher specification of memory (1333 vs 2)
Newer PCIe version (2 vs 1)
Higher base frequency (2.667GHz vs 2.4GHz)
More modern manufacturing process (45nm vs 90nm)