Multiple GPUs, One for calculations another for display

Hi,

I am new to Unreal Engine. I have two cards, Nvidia GTX 1070 8 Gb and GT 630 4 Gb. Is there a way I can dedicate GTX 1070 for baking, physics, rendering etc and use 630 for display?

Or, is it recommended to directly use it with GTX 1070? This will be used with Occulus VR.

The reason I wanted to have two GPUs is because it helps greatly in the other software I use. For example - Blender, Da Vinci Resolve.

Regards,
Vishal