Intel Xeon X5660 's Advantages
Released 2 years and 6 months late
Higher base frequency (2.8GHz vs 1.8GHz)
Larger L3 cache size (12MB vs 2MB)
More modern manufacturing process (32nm vs 65nm)
Opteron 8346 HE 's Advantages
Higher specification of memory (667 vs 3)
Lower TDP (68W vs 95W)