Opteron 2222 's Advantages
Higher base frequency (3GHz vs 2.8GHz)
Xeon E 2276M 's Advantages
Released 11 years and 9 months late
Higher specification of memory (2666 vs 2)
Newer PCIe version (3 vs 1)
More modern manufacturing process (14nm vs 90nm)
Lower TDP (45W vs 95W)