Opteron 8220 's Advantages
Higher specification of memory (667 vs 3)
Intel Xeon E3 1240 's Advantages
Released 4 years and 2 months late
Newer PCIe version (3 vs 1)
Higher base frequency (3.3GHz vs 2.8GHz)
More modern manufacturing process (32nm vs 90nm)
Lower TDP (80W vs 95W)