Intel Xeon X5687 's Advantages
Released 1 years and 10 months late
Higher base frequency (3.6GHz vs 2GHz)
Larger L3 cache size (12MB vs 6MB)
More modern manufacturing process (32nm vs 45nm)
Opteron 13KS EE 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (50W vs 130W)