Opteron 8212 HE (F2) 's Advantages
Higher base frequency (2GHz vs 1.9GHz)
Lower TDP (68W vs 115W)
Opteron 6168 's Advantages
Released 3 years and 7 months late
Higher specification of memory (DDR3 vs DDR2-667)
Newer PCIe version (2 vs 1)
More modern manufacturing process (45nm vs 90nm)