Opteron 3320 EE 's Advantages
Lower TDP (25W vs 130W)
Intel Xeon E5 2667 v2 's Advantages
Released 9 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3.3GHz vs 1.9GHz)
Larger L3 cache size (20MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)