Xeon E 2186M 's Advantages
Released 7 years late
Higher specification of memory (2666 vs 3)
Larger L3 cache size (12MB vs 8MB)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (45W vs 95W)
Intel Xeon E3 1235 's Advantages
Higher base frequency (3.2GHz vs 2.9GHz)