GPU: Nvidia GTX 1070 & GTX 760 = 58 seconds. Intel i5-4670K 3.4Ghz = 5 min 16 sec

[ARC]

CPU: Intel i5-4670K 3.4Ghz
GPU: Nvidia GTX 1070 & GTX 760
OS: Windows 10 64bit
Time: 58 seconds (GPU - CUDA)
Time: 5 min 16 sec (CPU)
Tile size: used the aiuto tile size add-on
blender version 2.79