Intel Xeon E5 2678 v3 's Advantages
Released 2 years and 8 months late
Newer PCIe version (3 vs 2)
Higher base frequency (2.5GHz vs 2.4GHz)
Larger L3 cache size (30MB vs 8MB)
Opteron 6278 's Advantages
Higher specification of memory (DDR3 vs DDR3)
Lower TDP (115W vs 120W)