Browser Performance Showdown: Which Browser Consumes the Least Memory with 10 Tabs?

Published Apr 21, 2026, 1:31 PM EDT

Gavin is the Segment Lead for the Technology Explained, Security, Internet, Streaming, and Entertainment verticals, former co-host on the Really Useful Podcast, and a frequent product reviewer. He has a degree in Contemporary Writing pillaged from the hills of Devon, more than a decade of professional writing experience, and his work has appeared on How-To Geek, Expert Reviews, Trusted Reviews, Online Tech Tips, and Help Desk Geek, among others. Gavin has attended CES, IFA, MWC, and other tech-trade shows to report directly from the floor, racking up hundreds of thousands of steps in the process. He's reviewed more headphones, earbuds, and mechanical keyboards than he cares to remember, and enjoys copious amounts of tea, board games, and football.

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I'm a long-term Chrome user. For better or worse, I stick with Chrome and my dazzling array of script-blocking and privacy-extending extensions. The thing is, I have enough RAM to run Chrome, and I find it fast and secure.

But that's not the case for everyone, as of all the known-things in the entire universe, that Chrome is a memory guzzler is absolutely up there.

RAM enters the conversation more than people realize. They might be complaining about a slow browser, but what they're really saying is "my browser is consuming too much memory for my device."

I wanted to find out what each browser actually costs in memory — not on a synthetic benchmark, but under the kind of load that looks like a real afternoon at a computer. Six browsers, ten sites, one Intel machine, and the same conditions across every test to find out which browser you should really be using.

Related

I ditched Chrome for this lightweight browser — and my PC’s faster than ever

This browser offers Chrome familiarity with less memory use and hidden tracking.

How I tested the browser and what hardware I used

Standardized testing procedures

To make sure my testing wasn't too clouded by my previous decisions, I tested the browsers on a clean install of Windows 11, with a fresh installation of each browser. I'm using an Asus Zenbook S14 (2024) with an Intel Core Ultra 7 258V with 32GB RAM. Now, I know the title says Chrome, Edge, Firefox, and Brave, but I've also added Opera and Vivaldi into the mix, rounding out the most popular Windows browsers list. And yes, I know browsers like Arc exist, and that Reddit crowned Zen Browser it's number one — but they're still super niche in terms of real-world users.

I also tested on the same ten websites, loaded in the same order each time, with each given some time to load up and settle before I took my RAM usage reading.

The ten sites, loaded in the same order every time: YouTube (with a video playing), Google Maps (satellite view, zoomed into a city), Gmail, Reddit, BBC News, Google Docs (with a document open), Twitch (live stream running), Amazon, Facebook, and Canva. I didn't pick these websites out of a hat: they cover the spread of what browsers actually spend their time rendering: video, maps, heavy JavaScript apps, social feeds, and canvas-based creative tools.

Then, I recorded two figures for each browser. The baseline is RAM consumption before any tabs are open, and then the total RAM after after all ten sites are fully loaded, with a two-minute settle period before I took the reading.

Quiz

8 Questions · Test Your Knowledge

A history of web browsers
Trivia challenge

From Mosaic to modern Chrome — how well do you know the browsers that built the internet?

BrowsersHistoryPioneersTech WarsMilestones

Begin

Which browser is widely considered the first to popularize graphical web browsing for mainstream users?

ANetscape NavigatorBInternet ExplorerCNCSA MosaicDWorldWideWeb

Correct! NCSA Mosaic, released in 1993, was the first browser to display images inline with text, making the web visually accessible to everyday users. Developed at the National Center for Supercomputing Applications, it became the gateway to the internet for millions.

Not quite. The answer is NCSA Mosaic. Released in 1993, it was the first browser to render images alongside text on the same page, transforming the web from a text-only experience into something visual and approachable for the general public.

Continue

What was the name of Tim Berners-Lee's original web browser, created in 1990?

ANexusBLynxCArenaDErwise

Correct! Tim Berners-Lee's original browser was called WorldWideWeb, later renamed Nexus to avoid confusion with the World Wide Web itself. It ran only on NeXT computers and was both a browser and a web page editor.

Not quite. The answer is Nexus. Tim Berners-Lee's first browser was originally called WorldWideWeb, but was renamed Nexus. It ran exclusively on NeXT computers and is considered the very first web browser ever created, back in 1990.

Continue

During the 'First Browser War' of the 1990s, which two browsers were the primary rivals?

ASafari and FirefoxBNetscape Navigator and Internet ExplorerCOpera and MosaicDInternet Explorer and Firefox

Correct! The First Browser War pitted Netscape Navigator against Microsoft's Internet Explorer throughout the mid-to-late 1990s. Microsoft's aggressive bundling of IE with Windows ultimately crushed Netscape, leading to IE's near-total market dominance by the early 2000s.

Not quite. The answer is Netscape Navigator and Internet Explorer. This fierce rivalry defined the late 1990s web. Microsoft bundled IE with Windows for free, undercutting Netscape's business model and eventually driving it out of the market entirely.

Continue

In what year was Mozilla Firefox first officially released to the public?

A2002B2003C2004D2005

Correct! Mozilla Firefox 1.0 launched on November 9, 2004, and was downloaded over 60 million times in its first year. It reignited competition in a browser market that had grown stagnant under Internet Explorer's dominance.

Not quite. The answer is 2004. Firefox 1.0 officially launched on November 9, 2004, born from the ashes of the Netscape/Mozilla project. Its emphasis on speed, security, and tabbed browsing helped shake Internet Explorer out of its complacency.

Continue

Which browser introduced the concept of tabbed browsing to a wide audience, years before IE or Netscape adopted it?

AFirefoxBSafariCOperaDCamino

Correct! Opera introduced tabbed browsing as early as 1994 in its internal versions, with public releases featuring tabs well before Firefox or IE caught on. Opera has long been a browser ahead of its time, also pioneering features like built-in ad blocking and a VPN.

Not quite. The answer is Opera. While Firefox popularized tabs for the masses, Opera had been offering tabbed browsing since the mid-to-late 1990s, making it one of the most innovative — if underappreciated — browsers in web history.

Continue

Google Chrome was first released to the public in September 2008, but which comic book artist was commissioned to explain its technology at launch?

AFrank MillerBScott McCloudCArt SpiegelmanDNeil Gaiman

Correct! Google famously commissioned Scott McCloud, author of 'Understanding Comics,' to create a 38-page comic explaining Chrome's technical architecture for its 2008 launch. It covered concepts like the V8 JavaScript engine, sandboxing, and multi-process tabs in an accessible, illustrated format.

Not quite. The answer is Scott McCloud. Google took the unusual step of hiring the acclaimed comics theorist to illustrate Chrome's technical concepts ahead of its 2008 launch. The comic explained things like isolated tabs and the new V8 engine in a surprisingly fun and readable way.

Continue

Which early browser, released in 1992, was text-only and is still actively maintained and used today for terminal environments?

AGopherBArenaCLynxDLine Mode Browser

Correct! Lynx, first released in 1992 by the University of Kansas, is a text-only browser that still receives updates today. It's valued by developers, accessibility advocates, and users who need a lightweight, keyboard-driven browsing experience in terminal environments.

Not quite. The answer is Lynx. This text-only browser has been around since 1992 and is remarkably still maintained decades later. It's popular among Linux power users, those browsing over SSH, and anyone who needs a fast, no-frills web experience without images or JavaScript.

Continue

Which browser engine, developed by Apple and later used as the foundation for Google Chrome's Blink engine, powers Safari?

AGeckoBTridentCPrestoDWebKit

Correct! Apple developed WebKit as a fork of KHTML and KJS for use in Safari, launching in 2003. Google later forked WebKit to create the Blink engine used in Chrome and Edge today, meaning WebKit's DNA lives on in the majority of the world's most-used browsers.

Not quite. The answer is WebKit. Apple built Safari on a fork of the open-source KHTML engine, calling it WebKit. When Google later developed Chrome, it initially used WebKit too before forking it into the Blink engine — so WebKit's influence on modern browsing is enormous.

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This browser used the least RAM across the ten sites

Time to switch?

I'm actually not entirely surprised by the ultimate winner: Brave. I'll elaborate more on why Brave typically tops the memory-use charts in a moment, but it's not the first time Brave has come on top in our browser testing.

Now, in descending order...

Microsoft Edge — 3.5GB total, 500MB baseline

Edge is the heaviest browser tested, and the gap between its total and its baseline tells an interesting story. Five hundred megabytes before a single tab opens is the cost of everything Microsoft ships turned on by default: the Copilot sidebar, the Shopping assistant, Collections, the startup boost that pre-loads Edge when Windows boots. These aren't features you necessarily asked for, but they're running regardless.

Edge isn't a bad browser, mind. Many folks really love it and use it as their daily-driver, but it's just never become my go-to; hangovers from the Internet Explorer days I expect.

On performance benchmarks, Edge is competitive, and the Copilot integration is useful if you're already in the Microsoft ecosystem. But you're paying a RAM premium for features that sit in memory whether you use them or not. If you're not actively getting value from the sidebar tools, that overhead is pure cost.

Firefox — 3.4GB total, 650MB baseline

I'm surprised by Firefox's performance in this test, as it has a stronger reputation for being lighter and more friendly to limited resource devices. That said, it also has issues with forced AI integrations that no-one really wants, much like most other browsers.

It actually has the highest baseline of any browser tested — 650MB before a single tab is open — reflects Gecko's architectural differences from Chromium. Firefox handles tab isolation differently, spawning more background processes than most users realise, and its telemetry, crash reporting, and other integrations all contribute to the idle overhead.

Firefox has so many other great positive points though, not least being one of the only major browsers built on an independent engines, even if Google makes up a large part of the funding it receives. That aside, having at least one alternative to Chromium is vital for the web, so keep supporting Firefox if you can, even if it didn't fare the best in this test.

Firefox is a free, open-source web browser developed by Mozilla, focused on speed, privacy, and security for users on all major platforms. It includes advanced features like tabbed browsing, a built-in password manager, private browsing mode, strong tracker blocking, and customization through thousands of extensions and themes.

Vivaldi — 3.0GB total, 425MB baseline

Vivaldi positions itself as the power user's browser, and on features it delivers: tab stacking, a built-in mail client, a highly customisable interface. The RAM cost on an Intel machine reflects that. Three gigabytes under a ten-tab load puts it closer to Edge and Firefox than to Chrome, despite running the same Chromium engine underneath.

It looks like the performance gap basically boils down to the custom UI layer Vivaldi builds on top of Chromium, which becomes more visible when you look at the raw numbers.

Vivaldi is a great browser though, and remains one of the best Chrome alternatives.

Vivaldi is a highly customizable, privacy-focused web browser packed with built-in productivity tools for power users. It features advanced tab management with stacking, tiling, and hibernation; a unified dashboard for mail, calendar, feeds, notes, and tasks; built-in ad and tracker blockers; integrated translation; and full UI customization including toolbars and themes.

Chrome — 2.7GB total, 400MB baseline

Chrome is the reference point everything else is measured against, and despite the received wisdom of "Chrome bad," it's far from the worst performer. In this case, it has the lowest baseline of any browser tested plus a pretty competitive total.

Chrome is actually more efficient than many folks give it credit, with its V8 engine receiving heaps of optimizations, plus the fact Chrome doesn't ship with a memory intensive sidebar or a forced AI integration.

There is one problem Chrome can't really skirt around, and that's privacy, but that's another story.

Google Chrome is a cross-platform web browser developed by Google LLC, built for speed, security, and integration with Google services. It uses the Blink rendering engine (formerly WebKit) and supports extensions, tab sandboxing, synchronization across devices, and frequent updates.

Brave — 2.2GB total, 300MB baseline

And, finally, your winner: Brave. Every other browser on this list renders what each page sends — ads, trackers, third-party scripts, the full payload. Brave blocks most of that at the network level before it ever reaches the renderer. Fewer network requests, less DOM complexity, fewer resources held in memory per tab, and that all adds up when you open more tabs.

Of course, Brave is a Chromium-based browser, but it still outdoes Chrome, and on machine with limited resource, is often a good option.

Brave is an open-source web browser focused on privacy, speed, and user control. Its standout features include Shields, which block ads, trackers, cookies, fingerprinting, and more by default, giving users granular privacy protection without the need for extensions. 

Modern hardware means browser RAM consumption matters less

But you still want efficient browsing

On a machine with 16GB of RAM, the difference between Brave and Edge in ordinary browsing is rarely something you'll feel. Modern operating systems manage memory aggressively, and the gap between 2.2GB and 3.5GB disappears when you've got headroom to spare.

It matters more on limited hardware. A machine with 8GB RAM or less is going to really notice the difference. Running a video editor alongside your browser is going to basically consume all your memory, likely slowing your system to a crawl.

I treat my browser like a to-do list because I have the system resources to spare, but that's not really the optimum way to use it, even with Chrome Memory Saver or Auto Tab Discard to keep memory management in check.

The bottom line is that Brave is the most RAM-efficient browser tested, by a margin that holds up across both total usage and idle baseline, which makes it very much worth your time.