Opteron 8220 's Advantages
Released 106 years and 1 months late
Higher base frequency (2.8GHz vs 1.2GHz)
Centaur CHA 's Advantages
Higher specification of memory (3200 vs 667)
Newer PCIe version (3 vs 1)
More modern manufacturing process (16nm vs 90nm)
Lower TDP (70W vs 95W)