The Microsoft Edge team measured the time it took identical Surface Book laptops to run fully through their batteries while streaming HTML5 video in fullscreen.
The test was done with Windows build 17763 and connected to the Internet through Wifi, and multiple samples were taken.
On average, Microsoft Edge lasted 24% longer than Chrome.
On average, Microsoft Edge lasted 94% longer than Firefox.
The test was performed on separate Surface Book laptops running the Windows 10 October 2018 Update (17763 release). A sample was taken for each browser on each laptop. These computers were configured to the following settings, to increase consistency between measures and reduce tasks that may start during the measurement and interfere with the results, while still representing a realistic user setup:
In order to collect precise power usage data, the Maxim power driver was installed onto each machine.
| Processor | i5-6300U @ 2.4GHz |
| Memory | 8G |
| Graphics | Intel HD Graphics 520 |
The laptops were allowed to play video until all of them had lost power. After the power had run down and the laptops had shut off, power was restored. Run-time and power consumption data was then collected by running "powercfg /spr" and opening the generated report.
| Browser | Duration | Edge Advantage |
|---|---|---|
| Edge 18 | 16:02:50 | |
| Chrome 69 | 12:53:41 | Edge lasts 24% longer |
| Firefox 63 | 8:16:20 | Edge lasts 94% longer |