How to check GPU usage on a Mac
Where to see GPU usage on a Mac: Activity Monitor's GPU History and % GPU column, the Terminal reading, and what keeps the GPU busy.
How do I check GPU usage on a Mac?
In Activity Monitor choose Window, GPU History, or press Command 4, for a live graph. Add the % GPU column with View, Columns to see which app uses it.
Can I see GPU usage in Terminal?
ioreg -r -d 1 -w 0 -c IOAccelerator | grep -oE '"Device Utilization %"=[0-9]+'It prints the current GPU utilisation as a percentage.
What uses the GPU on a Mac?
WindowServer drawing the screen, browsers with video or animation, video calls, external displays at high resolution, and games or editing apps. WindowServer high CPU covers the screen side.
Common questions
Does Activity Monitor show GPU usage?
Yes: GPU History in the Window menu and the % GPU column.
How do I check Mac GPU usage from command line?
ioreg -c IOAccelerator shows Device Utilization %.