CPU: Intel i5-4440 3.10Ghz
GPU: Nvidia GTX 750Ti
OS: Windows 10 64bit
Time: 3 min 37 seconds Tiles 128(GPU - CUDA)
Time: 5 min 45 sec Tiles 128(CPU)
Time: 4 min 49 seconds Tiles 64(GPU - CUDA)
Time: 5 min 37 sec Tiles 64(CPU)
Time: 3 min 18 seconds Tiles 256(GPU - CUDA)
Time: Aprox 7 min (canceled) 8 (CPU )