Opteron 13QS HE 's Advantages
Higher specification of memory (1333 vs 3)
Higher base frequency (2.4GHz vs 1.8GHz)
Lower TDP (71W vs 80W)
Intel Xeon E5 2403 's Advantages
Released 3 years and 1 months late
Larger L3 cache size (10MB vs 6MB)
More modern manufacturing process (32nm vs 45nm)