Intel Xeon E3 1285 v6 's Advantages
Higher base frequency (4.1GHz vs 3.2GHz)
Lower TDP (79W vs 80W)
Intel Xeon E 2356G 's Advantages
Released 4 years and 1 months late
Higher specification of memory (DDR4-3200 vs DDR4)
Newer PCIe version (4 vs 3)
Larger L3 cache size (12MB vs 8MB)