Hardware
Battery impact of iMac
iMac is a small SwiftUI surface. Desktop Macs without a notch can still use the floating top-edge companion. Disable it if you want the lightest possible notch.
Last updated 2025-12-23
What costs energy
Live polling and media artwork cost more than a static chip. iMac should sleep when unused.
How to lighten it
Turn off unused live activities in Settings so iMac is not in the stack all day.