My computer is not very powerful, so I have Unity installed on virtual machine in a cloud. This virtual machine has pretty good graphics card (NVidia Tesla), but unity doesn’t use it. So, how can you change graphics card that is using Unity is using?
In windows, open the graphics settings (Settings → Display → Graphics) and choose classic app
then click on “Browse” and search for Unity.
Click on options and select “High Performance”. Now you should be using the Nvidia Tesla.