Opteron 8220 's Advantages
Higher specification of memory (667 vs 4)
Intel Xeon E3 1280 v3 's Advantages
Released 6 years and 4 months late
Newer PCIe version (3 vs 1)
Higher base frequency (3.6GHz vs 2.8GHz)
More modern manufacturing process (22nm vs 90nm)
Lower TDP (82W vs 95W)