Opteron 6180 SE 's Advantages
Released 3 years and 10 months late
Higher specification of memory (DDR3-1333 vs DDR2)
Newer PCIe version (2 vs 1)
More modern manufacturing process (45nm vs 90nm)
Opteron 2222 SE 's Advantages
Higher base frequency (3GHz vs 2.5GHz)
Lower TDP (119W vs 140W)