Opera said that it didn’t test Edge before, but it has now used the same test to benchmark its browser against Edge, and it seems that Opera came out ahead. Reducing activity in background tabsWaking CPU less often due to optimal scheduling of JavaScript timersAutomatically pausing unused plug-insReducing frame rate to 30 frames per secondTuning video-playback parameters and forcing usage of hardware accelerated video codecsPausing animations in browser themesIncluding ad blocker – when enabled, it provides even more battery savings Opera’s Testing Methodology Opera detailed how its power-saving feature works: It minimizes power usage by reducing resource usage (CPU usage) through modifying certain tab activity on tabs you’re not interacting with and putting inactive background tabs to sleep after 5 minutes or less.Earlier this year, Opera gained a new “Power Saver” feature that optimizes Opera’s Chromium core and its interface to improve battery life during browsing sessions by up to 50 percent compared to Google’s Chrome (according to Opera). The feature may be of benefit to mobile devices but also desktop devices, as it may also improve performance.Įfficiency mode is designed to help extend battery life. Microsoft notes that the benefits vary as they depend on factors such as the device that is used, the number of tabs that are open and other factors. Once turned on, Edge will put tabs that have been inactive for 5 minutes to sleep to free up system resources.
On Linux, efficiency mode is turned off by default. On Mac OS X devices, efficiency mode activates itself automatically if the power state of the battery reaches 20%. A blue pulse icon in Microsoft Edge's toolbar indicates that. Microsoft states on a support page that efficiency mode may be enabled automatically if a mobile device enters battery saver mode on Windows. Efficiency mode may be set to on or off, the default appears to be off in most configurations.
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