Google Touts Chrome 89 Memory Savings That 'Keep Your Mac Cooler' While Browsing

Google Chrome Material Icon 450x450Google's Chrome browser has been criticized for years for being a system resource hog, but Chromium developers are making some loud claims about how much smarter the latest version is at using and freeing up memory on macOS.

According to a new post on Google's Chromium blog, Chrome developers recently managed to shrink the memory footprint of background tabs on Mac by up to 8%, or just over 1GB on some systems in version 89 of the browser.

Tab Throttling, which acts on pages that are not currently active, is also said to have led to significant improvements by reducing JavaScript Timer wake-ups. Background tabs no longer wake up the CPU as often and preserve battery life, and as a result, Chrome uses up to 5x less CPU, while battery life is up to 1.25 hours better, says Google.

According to the developers, since its introduction in Chrome 87 and wider rollout in Chrome 88, the feature has been responsible for a 65% improvement on Chrome's Apple Energy Impact score for pages in the background.

The highlighted improvements are in stark contrast to recently reported independent measurements which claimed to demonstrate that Google Chrome uses 10x more RAM than Safari on macOS Big Sur.

The interpretation of those measurements has since been contested, but separately Apple still claims that Safari on ‌macOS Big Sur‌ is "50% faster on average at loading frequently visited websites than Chrome." Apple also says Safari can stream video for up to one and a half hours longer, and can keep users browsing normally on a single charge for up to one hour longer, compared to Chrome and Firefox.

Google Chrome for Mac is a free download available directly from Google's servers. Google Chrome for iOS is a free download for iPhone and iPad available on the App Store. [Direct Link]

Tags: Chrome, Google

Popular Stories

iPhone 17 Pro and Air Feature

Two iPhone 17 Pro and iPhone Air Colors Appear to Scratch More Easily

Friday September 19, 2025 10:02 am PDT by
As reported by Bloomberg today, some of the new iPhone 17 Pro and iPhone Air models on display at Apple Stores today are already scratched and scuffed. French blog Consomac also reported on this topic. The scratches appear to be most prominent on models with darker finishes, including the iPhone 17 Pro and Pro Max in Deep Blue, and the iPhone Air in Space Black. Images Credit: Consoma ...
iOS 26

iOS 26.0.1 Coming Soon, Likely With iPhone Air and iPhone 17 Pro Fix

Thursday September 18, 2025 9:17 am PDT by
Apple is preparing to release iOS 26.0.1, according to a private account on X with a proven track record of sharing information about future iOS versions. The update will have a build number of 23A350, or similar, the account said. It is likely that iOS 26.0.1 will fix a camera-related bug on the new iPhone Air and iPhone 17 Pro models. In his iPhone Air review, CNN Underscored's Henry T. ...
iPhone 17 Pro Colors

iPhone 17 Pro Max Teardown Reveals Qualcomm's Snapdragon X80 Modem for 5G

Friday September 19, 2025 7:39 am PDT by
While the iPhone Air is equipped with Apple's custom C1X modem for cellular connectivity, all of the iPhone 17 models are outfitted with Qualcomm modems still. A teardown video shared on Chinese platform Bilibili today (via Reddit) appears to confirm the iPhone 17 Pro Max is equipped with Qualcomm's Snapdragon X80 modem in particular. The same modem is likely used in the iPhone 17 and iPhone ...
iphone 17 pro max techwoven

Here Are The Best Cases You Can Buy for Your New iPhone 17 and iPhone Air

Friday September 19, 2025 6:46 am PDT by
Apple's new iPhones launch today, and there are plenty of options to choose from when it comes to protecting your new device from drops and scratches. In this article, we're taking a look at some of the best options for iPhone 17, iPhone 17 Pro, and iPhone 17 Air cases, as well as a few charging accessories. Note: MacRumors is an affiliate partner with some of these vendors. When you click a...
iOS 26 on Three iPhones

iOS 26's Liquid Glass Design Draws Criticism From Users

Wednesday September 17, 2025 2:56 pm PDT by
It's been two days since iOS 26 was released, and Apple's new Liquid Glass design is even more divisive than expected. Any major design change can create controversy as people get used to the new look, but the MacRumors forums, Reddit, Apple Support Communities, and social media sites seem to feature more criticism than praise as people discuss the update. Complaints There are a long...
iphone 17 pro inside

iPhone 17 Teardowns Confirm SIM and eSIM-Only Battery Capacities

Friday September 19, 2025 8:39 am PDT by
YouTube channel REWA Technology today shared an iPhone 17 Pro teardown video, offering a closer look inside the model with a SIM card tray. We are still waiting for repair website iFixit to share a more comprehensive teardown of the latest iPhone models, but this video provides a good look in the meantime. The device features various internal design changes, including larger rear camera...

Top Rated Comments

0134168 Avatar
59 months ago
I really can´t understand why a mac user install this piece of ****.
Score: 56 Votes (Like | Disagree)
coolajami Avatar
59 months ago
This 8% improvement is amazing! Means that instead of hogging 100% of your CPU/Memory will hog only 92%.
Way to go Chrome #not.
Score: 23 Votes (Like | Disagree)
crevalic Avatar
59 months ago
Wow, Macrumors.

Still perpetuating the completely debunked "safari uses 10% of RAM" finding from a single test by a guy who didn't understand how to correctly check for memory use?
Even misquoting by saying it was "tests" not a single false report that was completely disproven and should have been removed from this website? And then daring to call the findings "contested". They are not contested, they are false

Disgusting and embarrassing.

You are perpetuating misinformation.
Score: 22 Votes (Like | Disagree)
sw1tcher Avatar
59 months ago

According to a new post on Google's Chromium blog, Chrome developers recently managed to shrink the memory footprint of background tabs on Mac by up to 8%, or just over 1GB on some systems in version 89 of the browser.
Alternative headline: "Google Touts Chrome 89 Now More Efficient At Spying On And Monitoring You While Browsing"
Score: 21 Votes (Like | Disagree)
mazz0 Avatar
59 months ago

The highlighted improvements are in stark contrast to recent independent tests ('https://www.macrumors.com/2021/02/20/chrome-safari-ram-test/') which claimed to demonstrate that Google Chrome uses 10x more RAM than Safari on macOS Big Sur.

While the independent measurements have been contested ('https://news.ycombinator.com/item?id=26179817')
I don't think your little concession to that claim being "contested" is sufficient there. The report was disregarding almost all of Safari's memory footprint (that was handled by processes not named Safari). That doesn't make it just somewhat questionable, it makes it complete bollocks.
Score: 19 Votes (Like | Disagree)
Schranke Avatar
59 months ago
A little sad that they need to emphasis that its now able to save memory space. should have been lightweight all along.

Will stick to safari as my daily browser and Firefox as my 2nd option. No amount of work put into this by google will change that by now, and I also trust apple a little more in regards to privacy so...
Score: 18 Votes (Like | Disagree)