![]() ![]() Performance will vary based on system configuration, network configuration, network connection, and other factors. Tested with prerelease Safari 14.0.1 and WPA2 Wi-Fi network connection. Tested on preproduction MacBook Air and Mac mini systems with Apple M1 chip and 8-core GPU, as well as production 1.2GHz quad-core Intel Core i7-based 13-inch MacBook Air systems and 3.6GHz quad-core Intel Core i3-based Mac mini systems, all configured with 16GB RAM, 2TB SSD, and prerelease macOS Big Sur. macOS Big Sur, la última versión del sistema operativo de ordenador más avanzado del mundo, ya está disponible para usuarios de Mac como actualización de software gratuita, con un nuevo diseño espectacular y grandes mejoras en las apps principales. “Up to 1.5x speedier at running JavaScript and nearly 2x more responsive”: Testing conducted by Apple in September and October 2020 using JetStream 2 and Speedometer 2.0 performance benchmarks. macOS Big Sur incluye un nuevo diseño y mejoras en Safari, Mensajes, Mapas y mucho más. Performance will vary based on usage, system configuration, application workload, network connection, and other factors. Page load performance tested using snapshot versions of 10 popular websites under simulated network conditions with prerelease Safari 14.0.1 and Chrome v.121 on macOS. Tested with prerelease Safari 14.0.1, Chrome v.75, and Firefox v81.0.1 on macOS, as well as Chrome v.75, Microsoft Edge v86.0.622.38, and Firefox v81.0.1 on Windows Home, with WPA2 Wi-Fi network connection. Scores represent browsers that completed the test. Don’t interpret that as me telling you that you should upgradeif you wish to stick with Mojave or Catalina for a bit longer, that’s fine. Performance compared to other browsers on Mac and PC using JetStream 2, MotionMark 1.1, and Speedometer 2.0 benchmarks and Windows 10 Home, version 2004, running in Boot Camp. To reiterate, I now think it’s safe to upgrade from an earlier version of macOS to Big Sur, though I’d recommend scheduling it for a week or two after macOS 11.3 ships. macOS updates and upgrades also include the latest features and built-in apps such as Safari. To maintain your computer's security, stability, and compatibility, Apple recommends using the latest macOS that is compatible with your Mac. Their website states support for 2011 iMacs (iMac12,x), however the website also recommends upgrading to a Metal GPU. Download and install current or previous versions of the Mac operating system on compatible Mac computers. For Monterey (and Big Sur), there is OpenCore Legacy Patcher. ![]() Not all features are available on all devices. Here the instructions basically say a 2011 iMac would need a GPU upgrade before a Big Sur install would be practical endeavor. Safari tested with HD 1080p content, Chrome and Firefox tested with HD 720p content, all on macOS. Battery life tested with display brightness set to 12 clicks from bottom or 75 percent. “World’s fastest browser,” “industry-leading battery life,” and “loads frequently visited sites an average of 50 percent faster than Chrome”: 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.
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