Opteron 6274 's Advantages
Larger L3 cache size (16MB vs 6MB)
Intel Xeon E3 1283L v4 's Advantages
Released 3 years and 7 months late
Higher specification of memory (DDR3-1866 vs DDR3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.9GHz vs 2.2GHz)
Lower TDP (47W vs 115W)