Xeon E 2186G 's Advantages
Released 11 years and 3 months late
Higher specification of memory (2666 vs 667)
Newer PCIe version (3 vs 1)
Higher base frequency (3.8GHz vs 2.6GHz)
More modern manufacturing process (14nm vs 90nm)
Opteron 8218 HE 's Advantages
Lower TDP (68W vs 95W)