Opteron 13QS HE 's Advantages
Higher specification of memory (1333 vs 3)
Lower TDP (71W vs 115W)
Intel Xeon E5 2665 's Advantages
Released 2 years and 11 months late
Newer PCIe version (3 vs 2)
Larger L3 cache size (20MB vs 6MB)
More modern manufacturing process (32nm vs 45nm)