AVCaptureDeviceFormat x Battery Life

Will running an

AVCaptureDevice
at a 1920x1080
AVCaptureDeviceFormat
consume more battery than a format at say 640x480?

If on say an iPhone Plus, where there exists a resolution exactly equal to the screen resolution, you're at least saving a resizing operation on the GPU (I'm using Metal).


Is upsizing from 640x480 to 1920x1080 a more expensive operation than say, downsizing from 3840x2160 to 1920x1080?


Running an app with a camera background, that also uses the camera to capture media... so trying to make some intelligent battery life decisions on choose formats.

When resizing, what do you think Metal leans on more...GPU or ram?

AVCaptureDeviceFormat x Battery Life
 
 
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