Intel Xeon E3 1278L v4 's Advantages
Released 2 years and 6 months late
Newer PCIe version (3 vs 2)
More modern manufacturing process (14nm vs 32nm)
Opteron 4310 EE 's Advantages
Higher base frequency (2.2GHz vs 2GHz)
Larger L3 cache size (8MB vs 6MB)
Lower TDP (35W vs 47W)