Intel Xeon X5660 's Advantages
Released 3 years and 1 months late
Newer PCIe version (2 vs 1)
Higher base frequency (2.8GHz vs 2.6GHz)
More modern manufacturing process (32nm vs 90nm)
Opteron 8218 HE 's Advantages
Higher specification of memory (667 vs 3)
Lower TDP (68W vs 95W)