Intel Xeon E3 1285 v4 's Advantages
Released 2 years and 7 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3.5GHz vs 1.8GHz)
More modern manufacturing process (14nm vs 32nm)
Opteron 6366 HE 's Advantages
Larger L3 cache size (8MB vs 6MB)
Lower TDP (85W vs 95W)