Chrome Used 10X More RAM Than Safari on macOS Big Sur in Recent Test [Updated]

Under normal and lightweight web browsing, Google Chrome uses 10x more RAM than Safari on macOS Big Sur, according to a test conducted by Flotato creator Morten Just (via iMore).

google chrome macos big sur

In a blog post, Just outlines that he put both browsers to the test in two scenarios on the latest version of macOS. The first test was conducted on a virtual machine, and the second on a 2019 16-inch MacBook Pro with 32GB of RAM. In the first round of testing, Just simulated a typical browsing pattern of opening Twitter, scrolling around, and then opening a new tab with Gmail and composing an email.

Under that test, Just found that Chrome reached 1GB of RAM usage, while Safari used only 80MB of RAM. The two-tab test was only the start, however.

chrome safari ram test

With 54 tabs open, Just found that Google Chrome used 24x more RAM per tab compared to Safari. Both browsers, according to Just, were free of any extensions, and this specific test was conducted on his actual ‌MacBook Pro‌, not a virtual machine. Per his findings, Chrome used 290MB of RAM per open tab, while Safari only used 12MB of RAM per open tab.

chrome safari RAM 2

While the results are stark, Just does say that Google Chrome is likely "going out of its way to manage its memory usage across tabs," in efforts to keep the current tab "fast and responsive." In his tests, Just finds that his own application, Flotato, a lightweight alternative to Chrome that creates apps based on webpages, used significantly less RAM than both Safari and Chrome.

Chrome is known to being a memory hog on Mac and Windows computers, an issue Google has recently attempted to solve.

With macOS Big Sur, Safari received significant updates that saw it further outpace Chrome. Apple says that Safari on macOS Big Sur is "50% faster on average at loading frequently visited websites than Chrome," and that Safari provides up to one and a half hours longer of streaming video, and up to one hour longer normal web browsing on a single charge, compared to Chrome and Firefox.

Update: There are comments suggesting that these measurements may not be accurate. We'll provide further updates as more information comes out.

Related Forum: macOS Big Sur

Popular Stories

AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Friday April 18, 2025 5:16 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
CarPlay Hero

Apple Releases Wireless CarPlay Fix

Wednesday April 16, 2025 11:28 am PDT by
If you have been experiencing issues with wireless CarPlay in your vehicle lately, it was likely due to a software bug that has now been fixed. Apple released iOS 18.4.1 today, and the update's release notes say it "addresses a rare issue that prevents wireless CarPlay connection in certain vehicles." If wireless CarPlay was acting up for you, updating your iPhone to iOS 18.4.1 should...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday April 17, 2025 4:12 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
Beyond iPhone 13 Better Triad

Apple's 20th Anniversary iPhone May Finally Go All Screen

Tuesday April 15, 2025 6:31 am PDT by
Apple is preparing a "bold" new iPhone Pro model for the iPhone's 20th anniversary in 2027, according to Bloomberg's Mark Gurman. As part of what's being described as a "major shake-up," Apple is said to be developing a design that makes more extensive use of glass – and this could point directly to the display itself. Here's the case for Apple releasing a truly all-screen iPhone with no...
maxresdefault

iPhone 17 Pro Launching Later This Year With These 12 New Features

Sunday April 13, 2025 7:52 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Subscribe to the MacRumors YouTube channel for more videos. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and ...
iOS 19 Roundup Feature

iOS 19 Will Add These New Features to Your iPhone

Tuesday April 15, 2025 7:37 am PDT by
The first iOS 19 beta is less than two months away, and there are already a handful of new features that are expected with the update. Apple should release the first iOS 19 beta to developers immediately following the WWDC 2025 keynote, which is scheduled for Monday, June 9. Following beta testing, the update should be released to the general public in September. Below, we recap the key...
tvOS 18 Thumb 1

Apple Releases tvOS 18.4.1

Wednesday April 16, 2025 10:04 am PDT by
Apple today released tvOS 18.4.1, a minor update to the tvOS 18 operating system that came out last September. tvOS 18.4.1 comes two weeks after Apple released tvOS 18.4, and it is available for the Apple TV 4K and Apple TV HD models. tvOS 18.4.1 can be downloaded using the Settings app on the ‌Apple TV‌. Open up Settings and go to System > Software Update to get the new software....
top stories 2025 04 19

Top Stories: iPhone 17 Pro Rumors, CarPlay Bug Fix, and More

Saturday April 19, 2025 6:00 am PDT by
This week saw rumor updates on the iPhone 17 Pro and next-generation Vision Pro, while a minor iOS 18.4.1 update delivered not just security fixes but also a fix for some CarPlay issues. We also looked ahead at what else is in Apple's pipeline for the rest of 2025 and even the 20th-anniversary iPhone coming in 2027, so read on below for all the details on these stories and more! iPhone 17 ...
Apple TV Plus Feature 2 Magenta and Blue

Apple TV+ Available at Significantly Lower Price Until Next Week

Friday April 18, 2025 11:42 am PDT by
Apple TV+ is currently available at a much lower price than usual, but time is running out if you want to take advantage of the offer. In the U.S., new and qualified returning customers can subscribe to Apple TV+ for just $2.99 per month, for three months. Afterwards, regular pricing of $9.99 per month applies. The offer is available in the Apple TV app, and at tv.apple.com, through April...

Top Rated Comments

djcerla Avatar
54 months ago
Chrome: the browser you briefly use when poorly coded websites don’t like Safari.
Score: 110 Votes (Like | Disagree)
Vol Braakzakje Avatar
54 months ago
Yes, keeping track on everything the user does takes a toll
Score: 95 Votes (Like | Disagree)
Apple_Robert Avatar
54 months ago

I just can't get used to Safari's UI. I keep going back to Chrome. The closest alternative to Chrome for me is Brave.
And your loyalty is helping Google make a bigger file on you that can be sold later on. Google thanks you for your support.
Score: 48 Votes (Like | Disagree)
cmaier Avatar
54 months ago
This should surprise nobody.
Score: 37 Votes (Like | Disagree)
cmaier Avatar
54 months ago

Chrome: the browser you briefly use when poorly coded websites don’t like Safari.
More accurately, in my experience: chrome - the browser you fire up briefly when tech support suggests you give it a shot just because they don’t entirely trust that the problem isn’t your browser.
Score: 33 Votes (Like | Disagree)
magicschoolbus Avatar
54 months ago
I hate Chrome. I don't understand the wide adaption of this spyware.
Score: 26 Votes (Like | Disagree)