How can i use GPU instead of CPU on building ?

Hey i have a problem while building my game or opening big scene …i think rendering is performed by CPU not using GPU…and i am building the game it take about 2-3 hours every time i build it how can i make use of my GPU …please answer me and thanks in advance

That is normal, and no, Unity doesn’t have option/support to use GPU for buildings. The best thing you can do is either investing in cloud building or creating your own build server with Jenkins.

As far as I am personally aware Unity doesn’t use GPU for building. Maybe check your lighting and shadow settings aswell as terrian size. Also check edit > project settings > player > other settings then check if scripting backend is set to mono or IL2CPP. In my experience IL2CPP builds take much longer than mono.