Intel Xeon E3 1225 's Advantages
Newer PCIe version (3 vs 2)
Higher base frequency (3.1GHz vs 2.8GHz)
Lower TDP (95W vs 115W)
Opteron 6320 's Advantages
Released 1 years and 7 months late
Higher specification of memory (1866 vs 3)
Larger L3 cache size (8MB vs 6MB)