Intel Xeon E3 1280 v2 's Advantages
Released 6 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3.6GHz vs 2.1GHz)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (69W vs 115W)
Opteron 6272 's Advantages
Larger L3 cache size (16MB vs 8MB)