It's no big secret that Google's Chrome browser is a bit of a battery hog. The native browsers on both Windows and macOS (Edge and Safari) are widely reported to outlast Google's offering. In its latest campaign, Microsoft is quantifying this difference: in a test that cycles through some common sites including Facebook, YouTube, Wikipedia, and Amazon, Microsoft's latest browser lasted 7 hours and 22 minutes on a Surface Book system. Chrome lasted just 4 hours and 19 minutes.
Between these extremes were Firefox, at 5 hours and 9 minutes, and Opera in battery-saving mode, at 6 hours and 18 minutes.
Microsoft has gone a step beyond just measuring how long each system runs by measuring the power draw of the Wi-Fi, CPU, and GPU during its test workload. A task that drew 2.1W in Edge pulled 2.8W in Chrome, 3.1W in Opera, and 3.2W in Firefox. This lower draw translates to the longer battery life.
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