Performance will vary based on system configuration, application workload, and other factors. Not all features are available on all devices. Prerelease Safari 14.0.1 tested with HD 1080p content Chrome v.75 and Firefox v81.0.1 tested with HD 720p content. Systems tested with WPA2 Wi-Fi network connection while running on battery power, with display brightness set to 12 clicks from bottom or 75%. Testing conducted by Apple in October 2020 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.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. Testing conducted by Apple in October 2020 by measuring page load performance of snapshot versions of 10 popular websites under simulated network conditions.

Safari translation (beta) supports English, Spanish, Simplified Chinese, French, German, Russian, and Brazilian Portuguese.

Mac os x 10.3 emulator online