Opteron 4310 EE 's Advantages
Lower TDP (35W vs 71W)
Xeon E 2134 's Advantages
Released 5 years and 7 months late
Higher specification of memory (2666 vs 1600)
Newer PCIe version (3 vs 2)
Higher base frequency (3.5GHz vs 2.2GHz)
More modern manufacturing process (14nm vs 32nm)