I want to make a server-only version of my game, to run on servers. This version is the same as the normal one, with the only difference that the screen shows only a black screen with some buttons with the server options. The entire 3D game world and every gameobject is spawned in the server-version of the game and the server should do a lot of calculations, for example if a raycast starting from a certain object is hitting a certain surface. My question is: this version needs cpu only or also a good graphics card? Because servers doesn't have graphics card and i need to made it for only cpu calculations.