What is Automatic Graphics Switching?
Many high-end MacBook Pro models (specifically the 15-inch and 16-inch Intel models) are equipped with two separate graphics processors (GPUs). They have an “Integrated” GPU built into the CPU (which is slow but extremely battery efficient) and a “Discrete” dedicated AMD Radeon GPU (which is very powerful but drains the battery rapidly).
By default, macOS uses “Automatic Graphics Switching.” It runs the low-power GPU for browsing the web and typing documents, and instantly switches to the high-power GPU only when you launch a video game or export a video. However, this switching process can sometimes cause a brief stutter or screen flicker. Furthermore, some professional video editing applications fail to trigger the switch properly, leaving you with terrible performance. You can force your Mac to use the high-power GPU permanently.
How to Disable Automatic Graphics Switching
You can force the dedicated GPU to stay active via the Battery settings.
- Click the Apple Logo in the top-left corner of your Mac’s screen.
- Select System Settings… (or System Preferences on older versions of macOS).
- In the left-hand sidebar, scroll down and click on Battery.
- Look for the section labelled “Options” or “Energy Mode” (on older macOS versions, click the Power Adapter or Battery tab at the top).
- You will see a checkbox labelled Automatic graphics switching.
- Click the checkbox to remove the checkmark.
The moment you uncheck this box, macOS will permanently activate the dedicated, high-performance AMD GPU and leave it running 100% of the time, regardless of what application you are using.
Warning: Disabling this feature will ensure maximum graphics performance and eliminate screen stuttering, but it will massively reduce your laptop’s battery life. It is highly recommended to only disable this feature when your MacBook is plugged into a wall outlet.