Cuda cores used when running dual monitors


I am starting to use Digits to train a CNN, for training i have a GTX 1050 2GB card installed and from this card i am currently running 2 monitors.

Does running multiple monitors use any of the cuda cores in the GTX? The card has 640 cores and i would rather use a single monitor if it frees more cores for training. My other option is using the video output from the PC mother board if this will further prevent cuda cores being used for my monitor.