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 17134 and connected to the Internet through Wifi.
During the recorded test, Microsoft Edge lasted 14% longer than Chrome and 98% longer than Firefox; Opera was not tested during the recorded test iteration.
The test was performed on three Surface Book laptops running the Windows 10 April 2018 Update (17134 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.
For the video test, all methodology was the same, except that the duration value was determined by examining the clock that was placed behind the laptops.
| Browser | Actual Time |
|---|---|
| Edge 17 | 14:20:07 |
| Chrome 65 | 12:32:58 |
| Firefox 59 | 7:15:16 |