Opteron 6366 HE 's Advantages
Released 6 years and 3 months late
Higher specification of memory (1866 vs 667)
Newer PCIe version (2 vs 1)
More modern manufacturing process (32nm vs 90nm)
Opteron 8214 HE (F3) 's Advantages
Higher base frequency (2.2GHz vs 1.8GHz)
Lower TDP (68W vs 85W)