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.