Opteron 6274 's Advantages
Higher base frequency (2.2GHz vs 2.1GHz)
Larger L3 cache size (16MB vs 15MB)
Intel Xeon E5 2620 v2 's Advantages
Released 1 years and 10 months late
Newer PCIe version (3 vs 2)
More modern manufacturing process (22nm vs 32nm)
Lower TDP (80W vs 115W)