4K Video Wallpapers on Mac: Performance Guide

4K video wallpapers look incredible on 27-inch iMacs and MacBook Pro Retina panels. MacWall decodes 4K H.264 and HEVC streams on the GPU, the same pipeline used by QuickTime and Final Cut playback.

When 4K makes sense

Native 4K or 5K displays

Cinematic nature and space loops

Desk setups plugged into power

When to use 1440p instead

MacBook Air 13-inch and older Intel Macs may run cooler with 2560×1440 sources. MacWall scales video to fit, pick the resolution that matches your display for best quality-to-performance ratio.