Opteron 4310 EE 's Advantages
Higher specification of memory (DDR3-1600 vs DDR3)
Higher base frequency (2.2GHz vs 2.1GHz)
Lower TDP (35W vs 140W)
Intel Xeon E7 8870 v3 's Advantages
Released 2 years and 6 months late
Newer PCIe version (3 vs 2)
Larger L3 cache size (45MB vs 8MB)