Intel Xeon E5 2665 's Advantages
Released 5 years and 7 months late
Newer PCIe version (3 vs 1)
Higher base frequency (2.4GHz vs 1.8GHz)
More modern manufacturing process (32nm vs 90nm)
Opteron 8210 EE 's Advantages
Higher specification of memory (667 vs 3)
Lower TDP (45W vs 115W)