| TESTING PERFORMANCE
Handbrake video encoding test
We use this free tool to transcode a 30-minute video of quality comparable to a Blu-ray movie to the H.264 format, for playback on Apple devices, using a built-in preset. A lower time to completion (shown in minutes) is better.
Batman: Arkham City running at 1080p
We assess a Mac’s graphics processor using the frame rate test built into a recent video game, running at 1920x1080 pixels. A higher rate (in frames per second) is better.
Battery life test
With the MacBook using a Wi-Fi connection to get online, we continuously stream content from BBC iPlayer until its battery is depleted. The display’s brightness is set to 50%. Higher values (shown in minutes) are better.