Intel Xeon E3 1285L v4 's Advantages
Higher base frequency (3.4GHz vs 2.9GHz)
Xeon E 2186M 's Advantages
Released 2 years and 10 months late
Higher specification of memory (DDR4-2666 vs DDR3-1866)
Larger L3 cache size (12MB vs 6MB)
Lower TDP (45W vs 65W)