We looked at how to install the basic version of CNTK for use with your CPU. While the CNTK package is fast, it will run quicker on a GPU. But not all machines support this setup, and that's why I put the description of how to use your GPU into a separate section.
Before you attempt to install CNTK for use with a GPU, make sure you have a supported graphics card. Currently, CNTK supports the NVIDIA graphics card with at least CUDA 3.0 support. CUDA is the programming API from NVIDIA that allows developers to run non-graphical programs on their graphics cards. You can check whether your graphics card supports CUDA on this website: https://developer.nvidia.com/cuda-gpus.