Opteron 6274 's Advantages
Lower TDP (115W vs 165W)
Intel Xeon E5 2698A v3 's Advantages
Released 3 years late
Higher specification of memory (2133 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.8GHz vs 2.2GHz)
Larger L3 cache size (40MB vs 16MB)
More modern manufacturing process (22nm vs 32nm)