The Tech Report have been spending quite a bit of time with the Ryzen powered HP Envy x360, contrasting its performance to Intel based laptops.  They have moved from performance to battery life, something which means a great deal to those who travel with laptops or simply want to use the laptop without getting tangled in cords.  Their focus in this look at battery life is the impact of using an external screen only, with the built-in display disabled.  They chose a 2560×1440 display and tested the Envy against a Acer Swift 3 with an Intel i5-8250U to see how long the battery lasts without needing to power the integral display.  The results are quite striking and show a large difference in power efficiency.

"As we've continued testing AMD's Ryzen 5 2500U APU over the past few days, we've been confronted with the problem of comparing battery life across laptops with different screen sizes. Many readers suggested that I should take each machine's internal display out of the picture by hooking them up to external monitors. While I wanted to get real-world battery-life testing out of the way first, I can certainly appreciate the elegance of leveling the playing field that way. Now we have."

Here are some more Mobile articles from around the web:

More Mobile Articles