Opteron 4310 EE 's Advantages
Released 1 years and 8 months late
Higher specification of memory (DDR3-1600 vs DDR3)
Larger L3 cache size (8MB vs 6MB)
Lower TDP (35W vs 95W)
Intel Xeon E3 1225 's Advantages
Newer PCIe version (3 vs 2)
Higher base frequency (3.1GHz vs 2.2GHz)