Opteron 13KS EE 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (50W vs 115W)
Opteron 6274 's Advantages
Released 2 years and 7 months late
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (16MB vs 6MB)
More modern manufacturing process (32nm vs 45nm)