Opteron 13KS EE 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (50W vs 130W)
Intel Xeon X5680 's Advantages
Released 10 months late
Higher base frequency (3.333GHz vs 2GHz)
Larger L3 cache size (12MB vs 6MB)
More modern manufacturing process (32nm vs 45nm)