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

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 (Caution)
Related Forum: Mac mini

Popular Stories

mac studio purple

Apple Says Mac Studio and Mac Mini Will Be in Short Supply for Months

Thursday April 30, 2026 2:59 pm PDT by
During today's earnings call for the second fiscal quarter of 2026, Apple CEO Tim Cook said that the Mac mini and Mac Studio could be hard to get for months to come. "We think, looking forward, that the Mac mini and Mac Studio may take several months to reach supply demand balance," Cook said. Apple underestimated demand for the Mac mini and the Mac Studio. "Both of these are amazing...
astropad main image

MacRumors Giveaway: Win a Mac Mini to Run AI Agents With Astropad's 'Workbench' App

Friday May 1, 2026 10:09 am PDT by
For this week's giveaway, we've teamed up with Astropad to offer MacRumors readers a chance to win a Mac mini to use with Astropad's new Workbench app. For those unfamiliar with Astropad, it is the company behind Astropad Studio and Luna Display. Astropad Studio lets you use an iPad as a drawing tablet connected to a Mac and Luna Display turns an iPad into a secondary display for a Mac, so...
mac mini blue

Apple Stops Selling Mac Mini With 256GB of Storage, Starting Price Rises to $799

Friday May 1, 2026 11:29 am PDT by
Apple this week stopped offering a 256GB storage option for the Mac mini worldwide. As a result, the desktop computer now has a higher starting price. In the U.S., for example, the Mac mini now starts at $799 with the M4 chip, 16GB of RAM, and 512GB of storage, whereas it previously started at $599 with the M4 chip, 16GB of RAM, and 256GB of storage. While the 512GB configuration always...

Top Rated Comments

21 months ago

Still not mini at all looks like a Mac Studio lmao
You okay?
Score: 42 Votes (Like | Disagree)
21 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
21 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
21 months ago
Okay this is what we expected! Count me in for the M4 PRO!! Well done Appleeeee
Score: 14 Votes (Like | Disagree)
21 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
21 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)