1. Testing conducted by Apple in October 2020 using preproduction 13-inch MacBook Air systems with Apple M1 chip and 16GB of RAM. Performance per watt refers to the ratio of peak CPU performance to average power consumed using select industry-standard benchmarks. Comparison made against high-performing CPUs for notebooks and desktops commercially available at the time of testing. Performance tests are conducted using specific computer systems and reflect the approximate performance of MacBook Air.

2.Testing conducted by Apple in October 2020 using preproduction MacBook Air systems with Apple M1 chip and 8-core GPU, as well as production 1.2GHz quad-core Intel Core i7-based MacBook Air systems, all configured with 16GB RAM and 2TB SSD. Tested with prerelease Final Cut Pro 10.5 using a 55-second clip with 4K Apple ProRes RAW media, at 4096x2160 resolution and 59.94 frames per second, transcoded to Apple ProRes 422. Performance tests are conducted using specific computer systems and reflect the approximate performance of MacBook Air.

3.Testing conducted by Apple in October 2020 using preproduction MacBook Air systems with Apple M1 chip and 8-core GPU, as well as production 1.2GHz quad-core Intel Core i7-based MacBook Air systems with Intel Iris Plus Graphics, all configured with 16GB RAM and 2TB SSD. Tested with prerelease Final Cut Pro 10.5 using a 10-second project with Apple ProRes 422 video at 3840x2160 resolution and 30 frames per second. Performance tests are conducted using specific computer systems and reflect the approximate performance of MacBook Air.

4. Testing conducted by Apple in October 2020 using preproduction MacBook Air systems with Apple M1 chip and 8-core GPU, configured with 8GB of RAM and 512GB SSD. The Apple TV app movie playback test measures battery life by playing back HD 1080p content with display brightness set to 8 clicks from bottom. Battery life varies by use and configuration. See apple.com/batteriesfor more information.Testing conducted by Apple in October 2020 using preproduction MacBook Air systems with Apple M1 chip and 8-core GPU, as well as production 1.2GHz quad-core Intel Core i7-based MacBook Air systems, all configured with 16GB RAM and 2TB SSD. Tested with prerelease Xcode 12.2 and Create ML 2.0, with an Action Classification model created in the app. Performance tests are conducted using specific computer systems and reflect the approximate performance of MacBook Air.1TB = 1 trillion bytes; actual formatted capacity less.

5.Testing conducted by Apple in October 2020 using preproduction MacBook Air systems with Apple M1 chip, as well as production 1.2GHz quad-core Intel Core i7-based MacBook Air systems, all configured with 16GB RAM and 2TB SSD. Tested with FIO 3.23, 1024KB request size, 150GB test file, and IO depth=8. Performance tests are conducted using specific computer systems and reflect the approximate performance of MacBook Air.

6.Screen size is measured diagonally.

7.Speeds are based on theoretical throughput and may vary.