Opteron 2222 's Advantages
Higher base frequency (3GHz vs 1.8GHz)
Opteron 6366 HE 's Advantages
Released 5 years and 3 months late
Higher specification of memory (1866 vs 2)
Newer PCIe version (2 vs 1)
More modern manufacturing process (32nm vs 90nm)
Lower TDP (85W vs 95W)