Opteron 8224 SE 's Advantages
Higher specification of memory (667 vs 3)
Higher base frequency (3.2GHz vs 2.8GHz)
Intel Xeon X5660 's Advantages
Released 2 years and 7 months late
Newer PCIe version (2 vs 1)
More modern manufacturing process (32nm vs 90nm)
Lower TDP (95W vs 120W)