How to set your eGPU as the preferred device in macOS Mojave
(iMore iPhone)

Here`s how to make certain your application uses your eGPU on macOS Mojave Apple has made it simple for you to set a desired application to prefer your external graphics processing unit (eGPU) right in the OS itself. Here`s how! Install your applications Use Finder and `Get Info` Making sure it works Final comments Install your applications Make note of the install location of the application you wish to set to prefer eGPU. Un-intuitively, Apple has decided that rather than use a preference panel under System Preferences for centralized administration, you instead need to use Finder to navigate to your installed application and make changes under the Get Info option. Use Finder and `Get Info` Start a Finder window. Navigate to the Application you want to prefer your eGPU. Control-Click the Application. Select Get Info. In the Get Info panel, check Prefer External GPU. Close the Panel. Making sure it works You can monitor all of your Mac GPU`s performance by enabling G...