Opteron 4310 EE 's Advantages
Higher specification of memory (DDR3-1600 vs DDR3)
Higher base frequency (2.2GHz vs 1.8GHz)
Larger L3 cache size (8MB vs 6MB)
Lower TDP (35W vs 47W)
Intel Xeon E3 1258L v4 's Advantages
Released 2 years and 6 months late
Newer PCIe version (3 vs 2)