# Bookmarked: A less scientific update to resource usage by browsers...

- Author: @gurupanguji
- Date: 2025-07-08
- URL: https://gurupanguji.com/blog/2025/07/08/a-less-scientific-update-to-resource-usage-by-browsers/
- Categories: link, technology
- Tags: apple, arc, browser, chrome, google, mac, os-x, safari, web, web-browser, zen

---


> Today's updated bit of data is less scientific than the last time, but I ran the same tests one a few browsers again over the past few days, keeping every variable the same except for the browser in use: this time testing Zen, Arc, and Safari. This is the macOS Tahoe beta, so not a scientific test bench by any means, but the results after a 5 hour test run repeated twice for each browser was very consistent. In summary, after 5 hours of web browsing (M4 Pro MacBook Pro), Safari brought the battery life down to 61% Arc brought it down to 67% Zen brought it down to 68%

*Source:* [Seriously, use the browser you like, don't worry about battery](https://birchtree.me/blog/seriously-use-the-browser-you-like-dont-worry-about-battery/)

<!-- wp:paragraph -->
<p>This is good work from <a href="https://birchtree.me/">Matt Birchler</a>. While the process isn't scientific, testing this breaks down some very wrong conceptions that have now become apocryphal. I also think that this really shouldn't be surprising. Chrome (and chromium) always did a LOT of optimization work that never really came through because Chrome was also shipping so much all the time. As a browser, chrome was always trying to do more than Safari. Personally, I feel like ARM made such a big difference for Chrome. All of those optimizations done for mobile are now likely compounding for the M-series of chips for Apple as well, making chromium based browsers really shine on the Apple platforms.</p>
<!-- /wp:paragraph -->

<!-- wp:paragraph -->
<p>This is yet another reason why I really wish Apple would allow chromium based browsers on iOS/ iPad OS. </p>
<!-- /wp:paragraph -->