Apple's Much Smaller M4 Mac Mini Has All-New Thermal Architecture to Maximize Speed

The Mac mini received a major update today, with Apple introducing a slimmed down design that shaves more than two inches off of the size so it takes up less space on a desktop or in a rack. Despite the size change, the ‌Mac mini‌ uses Apple's most powerful M-series chips, including the new M4 Pro.

mac mini thermal architecture
Combining the smaller form factor and updated chips necessitated a redesigned thermal architecture. The foot of the ‌Mac mini‌ allows it to pull in air from the surrounding environment, and the air is able to circulate throughout before being vented back out through the bottom foot.

Apple says that air is guided to each level of the system, and that combined with the power efficiency of the M4 chips, the ‌Mac mini‌ can "breeze through intensive workloads at outrageous speeds."

The redesigned ‌Mac mini‌ measures in at five inches square and two inches tall. It's taller than the prior version, but it is 2.75 inches smaller. Rumors suggested that it could be as small as the Apple TV (which is 3.66 inches), but it ended up being a bit bigger than that.

The M4 Pro hasn't been benchmarked yet, but it has a 14-core CPU and up to a 20-core GPU, which is up to twice as powerful as the M4 GPU. 3D renders in Blender are up to 2.9x faster compared to the M2 Pro and motion graphics render up to 2x faster.

Related Roundup: Mac mini
Buyer's Guide: Mac Mini (Buy Now)
Related Forum: Mac mini

Popular Stories

WWDC25 Live Coverage Feature 1

WWDC 2025 Apple Event Live Keynote Coverage: iOS 26, macOS Tahoe, and More

Monday June 9, 2025 9:00 am PDT by
Apple's Worldwide Developers Conference (WWDC) starts today with the traditional keynote kicking things off at 10:00 a.m. Pacific Time. MacRumors is on hand for the event and we'll be sharing details and our thoughts throughout the day. We're expecting to see a number of software-related announcements led by a design revamp across Apple's platforms that will also see the numbering of all of...
liquid glass

Apple Announces All-New 'Liquid Glass' Software Redesign Across iOS 26 and More

Monday June 9, 2025 10:13 am PDT by
Apple today announced a complete redesign of all of its major software platforms called "Liquid Glass." Announced simultaneously for iOS, iPadOS, macOS, watchOS, tvOS, visionOS, and CarPlay, Liquid Glass forms a new universal design language for the first time. At its WWDC 2025 keynote address, Apple's software chief Craig Federighi said "Apple Silicon has become dramatically more powerful...
maxresdefault

Everything Apple Announced at WWDC 2025 in 9 Minutes

Monday June 9, 2025 5:21 pm PDT by
At today's WWDC 2025 keynote event, Apple unveiled a new design that will inform the next decade of iOS, iPadOS, and macOS development, so needless to say, it was a busy day. Apple also unveiled a ton of new features for the iPhone, an overhauled Spotlight interface for the Mac, and a ton of updates that make the iPad more like a Mac than ever before. Subscribe to the MacRumors YouTube channel ...
iPadOS 26 Apple Newsroom

Apple Says iPadOS 26 is Compatible With These iPad Models

Monday June 9, 2025 11:22 am PDT by
Apple today announced that iPadOS 26 will be compatible with the iPad models listed below. iPadOS 26 features a new Liquid Glass design, a menu bar, improved app windowing, and more. iPadOS 26 supports the following iPad models:iPad Pro (M4) iPad Pro 12.9-inch (3rd generation and later) iPad Pro 11-inch (1st generation and later) iPad Air (M2 and later) iPad Air (3rd generation and...
iPhone Car Key WWDC 2025

Apple Says These 13 Vehicle Brands Will Soon Offer iPhone Car Keys

Monday June 9, 2025 2:38 pm PDT by
In 2020, Apple added a digital car key feature to its Wallet app, allowing users to lock, unlock, and start a compatible vehicle with an iPhone or Apple Watch. The feature is currently offered by select automakers, including Audi, BMW, Hyundai, Kia, Genesis, Mercedes-Benz, Volvo, and a handful of others, and it is set to expand further. During its WWDC 2025 keynote today, Apple said that 13...
AirTag Backpack

New AirTag With Three Upgrades is 'Nearly Ready' to Launch

Sunday June 8, 2025 11:44 am PDT by
Apple's long-rumored AirTag 2 might be coming soon. In his Power On newsletter today, Bloomberg's Mark Gurman briefly mentioned that a new AirTag is "nearly ready" to launch. Last year, he said that it would be released around the middle of 2025, and the midpoint of the year is just a few weeks away. "The new AirTag is nearly ready, having been prepared for launch over the past several...
Apple WWDC25 iOS 26 hero 250609

Apple Announces iOS 26 With 'Liquid Glass' Design, Live Translation, Overhauled Phone App, and More

Monday June 9, 2025 11:00 am PDT by
Apple at WWDC announced iOS 26, introducing a comprehensive visual redesign built around its new "Liquid Glass" concept, alongside expanded Apple Intelligence capabilities, updates to core communication apps, and more. Liquid Glass is a translucent material that reflects and refracts surroundings to create dynamic, responsive interface elements, according to Apple. The new design language...

Top Rated Comments

Macalway Avatar
8 months ago

Still not mini at all looks like a Mac Studio lmao
You okay?
Score: 42 Votes (Like | Disagree)
jayryco Avatar
8 months ago
I only wish they would've added some sort of dust filter mesh that could be periodically removed and cleaned
Score: 17 Votes (Like | Disagree)
mikeboss Avatar
8 months ago
Mac mini M4 and M4 Pro have different cooling (according to the environmental report).
M4 Pro is built with copper (heatpipe?) and the M4 has an aluminum heatsink.

https://www.apple.com/environment/pdf/products/desktops/Mac_mini_PER_Oct2024.pdf



Attachment Image
Score: 16 Votes (Like | Disagree)
iCyprus Avatar
8 months ago
Okay this is what we expected! Count me in for the M4 PRO!! Well done Appleeeee
Score: 14 Votes (Like | Disagree)
Total Respray Avatar
8 months ago
“It's taller than the prior version, but it is 2.75 inches smaller.”

So it’s taller but smaller. Got it.
Score: 12 Votes (Like | Disagree)
stiligFox Avatar
8 months ago

does it have an active cooling fan? The old Mac mini is fanless right? I don’t remember
It does! And no, the previous generation also had a fan, but it was a more straightforward flow over a CPU heat sync.
Score: 11 Votes (Like | Disagree)