Systems tested with WPA2 Wi-Fi network connection while running on battery power, with display brightness set to 12 clicks from bottom or 75%.
Performance will vary based on usage, system configuration, network connection, and other factors. Tested with prerelease Safari 14.0.1 and Chrome v.121.
Tested on production 1.4GHz quad-core Intel Core i5-based 13-inch MacBook Pro systems with 8GB RAM, 256GB SSD, and prerelease macOS Big Sur.