Of course, it's a wise idea to take this (and any other company-run benchmark) with a grain of salt. Most people don't spend all day watching Netflix on the web, and Microsoft doesn't mention exactly how long the browsers lasted in the generic browsing test. Also, it conducted the tests on Surface Books. Your mileage is likely to vary with third-party hardware. The company does point to lower overall power consumption based on data from "millions" of Windows 10 PCs, but that will only tell you so much about your own experience.

Still, it's no secret that Chrome is relatively power-hungry. Google's attempts to improve Chrome's battery efficiency have only gone so far, and it's practically common wisdom that you use another browser if you need an extra hour or two of runtime. It's just important to remember that Microsoft has a strong incentive to trash talk Chrome, and that battery life isn't always the most important factor.