Apple Silicon Unified Memory: How Much Mac RAM Do You Need?

When choosing a new Mac, one of the most important decisions you'll make is how much memory to configure. This guide helps you to work out how much RAM you need.

apple silicon feature joeblue
With the advent of Apple silicon and its unified memory architecture in 2020, the traditional understanding of RAM has evolved, leading to new considerations for users when selecting a memory option. Unlike traditional PC RAM, where separate components like the CPU and GPU each have their own dedicated memory pools, Apple's unified memory architecture allows all processing units to access a single, shared pool of high-bandwidth, low-latency memory.

As a result, in Apple silicon systems, data doesn't need to be copied between multiple memory areas, significantly improving speed and power efficiency. By uniting memory, Apple devices with this technology theoretically deliver superior performance across multitasking, creative workflows, and demanding applications while minimizing the latency typically associated with data transfer between separate memory types. With the optimizations of macOS, this means that less memory can go further than before, for most Mac users.

All Mac models now start with 16GB of memory, up from 8GB, with the option to upgrade to higher configurations with build-to-order models. However, choosing to do so can add considerable cost to the base price of a new Mac.

To help you make the best choice for your workflow and budget, here's a breakdown of who should choose each memory tier currently available in the entire Mac lineup and why it may be the right fit for you:

  • 16GB: General users, students, and professionals with standard workloads should opt for 16GB. This configuration is perfect for those who primarily browse the web, stream content, use productivity apps, and perform multitasking. Thanks to the performance of Apple silicon and the efficiency of macOS, 16GB is more than sufficient for a smooth experience with everyday tasks.
  • 24GB: Users who need slightly more headroom for multitasking and moderate creative work should consider 24GB. This tier is ideal for those who work with slightly heavier applications such as video editing, gaming, graphic design, or coding but do not push these tasks to the absolute extreme. It provides an additional buffer for users who run multiple intensive apps simultaneously and perform more multitasking than what 16GB can handle comfortably.
  • 32GB, 36GB, or 48GB: Professionals engaging in intensive creative workflows, such as video editing in 4K, music production with multiple tracks, or large-scale coding projects, should opt for 32GB, 36GB, or 48GB. These configurations suit users who frequently use memory-heavy applications like Adobe Creative Cloud apps, Xcode, or virtual machines. It provides sufficient power for consistent performance without frequent reliance on disk swapping, even under substantial workloads.
  • 64GB: Power users and creative professionals who manage high-resolution media and extensive multitasking should choose 64GB. It is ideal for those working on large 3D modeling projects, editing 8K video, or handling complex simulations and data analysis. This memory quantity should support running multiple virtual machines or advanced software development environments without any slowdown.
  • 96GB: High-end creative professionals and developers handling intensive projects involving large datasets or media should consider 96GB. This tier offers significant overhead for those who need more than 64GB, ensuring seamless performance when editing multiple streams of high-resolution video, detailed 3D rendering, or working with substantial datasets that need to be kept in active memory.
  • 128GB: Professionals in specialized fields like film editing, data science, or engineering should look at 128GB. This memory configuration is designed for workflows that involve extremely large projects and require vast amounts of data to be kept in active memory. It is perfect for those working on high-resolution visual effects in cinema, simulation-based software, or advanced scientific computations, providing robust multitasking and peak performance across demanding tasks.
  • 192GB: Enterprise-level users, researchers, and industry professionals dealing with mission-critical, memory-intensive applications should opt for 192GB. This option is suitable for large-scale data processing, machine learning, or AI development, ensuring maximum efficiency and reducing the need for data swapping between RAM and storage. It is also ideal for developers working on complex server-side projects requiring powerful single-machine testing.

With Apple silicon's Unified Memory Architecture and macOS's efficient memory management, the base 16GB configuration now meets the needs of most users, providing a good balance of cost and performance for everyday computing tasks and moderate creative work.

The increasing importance of demanding artificial intelligence features like Apple Intelligence and the potential for more intensive applications over time mean that those with more demanding workflows or plans for longevity should consider upgrading the memory. Opting for 24GB or 32GB can provide an added buffer for the future, supporting heavier multitasking, creative software, and emerging AI features. Higher configurations, such as 64GB or more, are better for professionals in fields that require significant data handling, including video production, 3D rendering, and machine learning.

For users who already own an Apple silicon Mac, it will be worthwhile to evaluate your current system's performance to determine whether you'll need more memory next time around. Consider whether your current memory configuration handles your typical workload efficiently or if you experience slowdowns during multitasking or when using resource-intensive applications. Ultimately, your decision should balance your current workload, any anticipated future requirements, and cost—especially since adding memory can be expensive and it cannot be changed after purchase.

Popular Stories

Foldable iPhone 2023 Feature Iridescent 1

Foldable iPhone's Display Sizes Leaked

Tuesday July 22, 2025 6:00 pm PDT by
Apple's first foldable iPhone will be equipped with a 7.8-inch inner display, and a 5.5-inch outer display, according to Taiwanese research firm TrendForce. Apple supply chain analyst Ming-Chi Kuo already mentioned those same display sizes for the foldable iPhone in March, meaning there are now multiple sources backing those sizes, so long as TrendForce is not simply copying what Kuo said. ...
iOS 26 Feature

Everything New in iOS 26 Beta 4

Tuesday July 22, 2025 3:56 pm PDT by
Apple released the fourth beta of iOS 26 today, and the company has continued making changes to the way that Liquid Glass looks. There are also new features, including the return of Apple Intelligence Notification Summaries for news. This beta is of particular interest because it's likely the beta that public beta testers will get in the not too distant future. Liquid Glass Changes Liquid...
Apple AppleCare One hero

Apple Announces 'AppleCare One' Subscription Plan for Multiple Devices

Wednesday July 23, 2025 5:06 am PDT by
Apple today announced AppleCare One, a new subscription plan for customers to cover multiple devices with a single plan. AppleCare One starts at $19.99 per month for up to three products, with the ability to add more for $5.99 per month for each additional device. The plan incudes all of the benefits that come with AppleCare+, such as unlimited repairs for accidents, priority support,...
CarPlay Liquid Glass Dark

iOS 26's Biggest CarPlay Feature Was Quietly Hiding on Apple's Website

Monday July 21, 2025 7:45 am PDT by
Apple recently announced that iPhone users will soon be able to watch videos right on the CarPlay screen in supported vehicles. This is arguably the biggest new CarPlay feature coming with the iOS 26 update later this year, and yet Apple did not even mention it during its WWDC 2025 keynote last month. Instead, it was buried on Apple's developer website. iPhone users will be able to...
iphone 16 pro models 1

18 Reasons to Wait for the iPhone 17

Tuesday July 22, 2025 8:10 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 now less than two months away, so we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you...
Liquid Glass Realistic

Apple Improves Liquid Glass in iOS 26 Beta 4, Reversing Some Beta 3 Changes

Tuesday July 22, 2025 11:21 am PDT by
With the fourth beta of iOS 26, Apple has again made changes to the Liquid Glass design that's available across the operating system, tweaking how the menus and buttons appear in apps. In response to criticism about too little Liquid Glass in beta 3, Apple has upped the translucency in several areas. Beta 4 on left, beta 3 on right Navigation bars in apps like Photos, Music, the App ...
iPhone 17 Pro on Desk Centered 1

iPhone 17 Pro Launching in Two Months With These 16 New Features

Tuesday July 22, 2025 5:00 pm PDT by
Apple's iPhone 17 Pro and iPhone 17 Pro Max are less than two months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models, as of July 2025:Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X through iPhone 14...
iOS 26 Feature

iOS 26 Public Beta Appears Imminent Based on This Latest Hint

Monday July 21, 2025 7:32 pm PDT by
An anonymous leaker with a proven track record today shared alleged build numbers for the fourth developer betas of iOS 26 and more. The private account on X has accurately leaked build numbers for Apple software updates in the past. We do not link to the account at the owner's request. Here are all of the build numbers shared by the account today: iOS 26 and iPadOS 26 beta 4 (23A5297i)...

Top Rated Comments

nutmac Avatar
9 months ago
MacRumors forgot to add:

16GB: For Chrome users with 1 tab.
24GB: For Chrome users with 2 tabs.
32GB or 36GB: For Chrome users with 3 tabs.
64GB: For Chrome users with 4 tabs.
96GB: For Chrome users with 5 tabs.
128GB: For Chrome users with 6 tabs.
192GB: For Chrome users with 7 tabs.

/s
Score: 70 Votes (Like | Disagree)
SteveJobs2.0 Avatar
9 months ago
As much as you can put to use and afford. And, if you can afford some more, then get at least 50% more spare capacity for future needs.
Score: 51 Votes (Like | Disagree)
Darajavahus Avatar
9 months ago
How do you explain just Mail or Safari wanting over 200GB??? I'm not Hollywood movie editor or enterprise-level researcher, I just have bunch of tabs when I'm researching what air fryer to buy and then system runs out of memory ? whyyyy???

Attachment Image

Attachment Image
Score: 36 Votes (Like | Disagree)
icanhazmac Avatar
9 months ago
This should be fun... a welcome distraction from the days events!



Says every poster to every other poster on this topic!

Attachment Image
Score: 34 Votes (Like | Disagree)
tonywalker23 Avatar
9 months ago
Don't know why anyone would ever need more than the 128mb in my PowerBook G4.
Score: 28 Votes (Like | Disagree)
ChrisA Avatar
9 months ago

Expect RAM use to grow over the life of your Mac. Plan accordingly...

My Advice: If you have an Apple Silicon (M1, M2, or M3) Mac now with only 8GB of RAM, consider selling it on eBay ...
The vast majority of Mac users use their computers for almost nothing. Shopping on Amazon and watching videos or maybe email. That's it. For those people, a Chromebook would work well. And even the M1 with 8GB is overkill.

Seriously, when was the last time you used Logic on an orchestral assignment with two dozen sampled tracks? And when you did, I bet it worked well enough with 16GB RAM. Most people use just one app, the web browser.
Score: 28 Votes (Like | Disagree)