New MacBook Pro Features Smaller Heatsink Due to Supply Chain Issues

The M2 Pro and ‌M2‌ Max MacBook Pro models feature a considerably smaller heatsink due to supply chain issues, teardowns suggest.

macbook pro heatsink design changesTop: M1 Pro logic board with larger heatsink. Bottom: ‌M2‌ Pro logic board with smaller heatsink (via iFixit).

The new MacBook Pro's revised thermal architecture appears to be caused by the reduced overall footprint of the ‌M2‌ Pro and ‌M2‌ Max SoCs inside the device, as noted by iFixit and Max Tech. The ‌M1 Pro‌ and M1 Max MacBook Pro models contained two, large memory modules, but the ‌M2‌ Pro and ‌M2‌ Max MacBook Pro models contain four slimmer memory modules. Even though the ‌M2‌ Pro and ‌M2‌ Max dies are physically larger than those of the ‌M1 Pro‌ and ‌M1 Max‌, the SoCs as a whole take up less space.

macbook pro soc design changesLeft: ‌M1 Pro‌ SoC. Right: ‌M2‌ Pro SoC (via iFixit).

This means that the ‌M2‌ Pro and ‌M2‌ Max MacBook Pro models do not require a heatsink as large as the one used for the previous generation. It is not clear if this significantly impacts thermal efficiency.

The reason for the use of four smaller memory modules appears to be supply chain issues. The entire SoC is mounted on a substrate, so four smaller modules allow Apple to use a smaller substrate, making a saving on materials and reducing complexity as a result. Dylan Patel, Chief Analyst at SemiAnalysis, told iFixit:

ABF substrates were in very short supply when Apple made the design choice. By using four smaller modules rather than two larger ones, they can decrease routing complexity within the substrate from the memory to the SoC, leading to fewer layers on the substrate. This allows them to stretch the limited substrate supply further.

The ‌M2‌ Pro and ‌M2‌ Max deliver up to 20 percent better CPU performance and 30 percent better GPU performance than their predecessors, but since the chips continue to be based on TSMC's 5nm process, some users have noted that Apple may have made thermal tradeoffs in order to deliver improved performance.

Related Roundup: MacBook Pro 14 & 16"
Tag: iFixit
Related Forum: MacBook Pro

Top Rated Comments

syklee26 Avatar
8 weeks ago
Potentially compromised performance at that price? That is unacceptable.
Score: 43 Votes (Like | Disagree)
coffeemilktea Avatar
8 weeks ago
Guess I'll have to stick to my M1-based MacBook Pro for now. I'm not sure these new, smaller heatsinks can handle my spicy memes and fire mixtapes. ?
Score: 39 Votes (Like | Disagree)
Realityck Avatar
8 weeks ago
Interesting how they claim its due to supply chain issues.
Score: 33 Votes (Like | Disagree)
Born Again Avatar
8 weeks ago

Ah, "supply-chain issues", the all-purpose excuse for everything these days.
It’s what I tell my boss when I’m late to work.
Score: 31 Votes (Like | Disagree)
Aenean144 Avatar
8 weeks ago
That's not a heatsink. That's just the interface block that you are describing. The heat is transferred to the two radiator fins. The fans then blow air across the fins. The radiator fins are the heat sink. At least, that's what I classically think of as the heatsink.

This interface block completely covers the chip. It's fine.
Score: 30 Votes (Like | Disagree)
lyngo Avatar
8 weeks ago
Smugmaverick first reported this in another thread. I think he should get some credit here.
Score: 25 Votes (Like | Disagree)

Popular Stories

iOS 16

iOS 16.4 for iPhone Nearing Launch With These 5 New Features

Monday March 20, 2023 11:50 am PDT by
Apple says iOS 16.4 is coming in the spring, which began this week. In his Sunday newsletter, Bloomberg's Mark Gurman said the update should be released "in the next three weeks or so," meaning a public release is likely in late March or early April. iOS 16.4 remains in beta testing and introduces a handful of new features and changes for the iPhone. Below, we have recapped five new features ...
apple park at night 1

Apple 'Tracking Employee Attendance' in Crackdown on Remote Working

Thursday March 23, 2023 3:41 am PDT by
Apple is tracking the attendance of its employees at offices using badge records in order to ensure they are coming in at least three times a week, according to Platformer's Zoë Schiffer. Since April 2022, Apple employees have been operating on a hybrid home/office work policy as part of a gradual return strategy following the pandemic, with staff required to work from the office at least...
iphone 14 pro max deep purple feature purple

iPhone 15 Pro Rumor Recap: 10 New Features and Changes to Expect

Thursday March 23, 2023 6:42 am PDT by
While the iPhone 15 series is still around six months away from launching, there have already been plenty of rumors about the devices. Many new features and changes have been rumored for the iPhone 15 Pro and iPhone 15 Pro Max in particular. Below, we have recapped 10 changes rumored for iPhone 15 Pro models that are not expected to be available on the standard iPhone 15 and iPhone 15 Plus:A1...
dynamic island

iPhone 15 Dynamic Island to Include New Integrated Proximity Sensor

Friday March 24, 2023 12:27 am PDT by
This year, all iPhone 15 models will include Apple's Dynamic Island that unifies the pill and hole cutouts at the top of the display, but there will also be a material change to the feature that wasn't included in the iPhone 14 Pro models. According to a new tweet by Apple industry analyst Ming-Chi Kuo, the proximity sensor on the iPhone 15 series will be integrated inside the Dynamic Island ...
maxresdefault

Nothing Launches $149 Ear (2) Wireless Earbuds to Compete With AirPods Pro 2

Wednesday March 22, 2023 9:48 am PDT by
Nothing today announced the launch of its second-generation wireless earbuds, the Nothing Ear (2), which offer many of the same features as Apple's AirPods Pro 2 at a lower price point. We went hands-on with the Ear (2) earbuds to see whether they're a viable alternative to the AirPods Pro 2 for those who want to save some cash. The Ear (2) earbuds are the successor to the Nothing Ear (1),...
voice isolation

iOS 16.4 Adds Voice Isolation for Cellular Phone Calls

Tuesday March 21, 2023 11:01 am PDT by
The iOS 16.4 update that is set to be released to the public in the near future includes voice isolation for cellular calls, according to notes that Apple shared today. Apple says that Voice Isolation will prioritize your voice and block out the ambient noise around you, making for clearer phone calls where you can better hear the person you're chatting with and vice versa. Voice...
TMobile Sprint

Apple Stops Allowing Sprint iPhone Activations, Removes Sprint References From Online Store

Thursday March 23, 2023 12:06 pm PDT by
Apple is no longer allowing customers who purchase an iPhone, cellular iPad, or Apple Watch to activate a device with now-defunct mobile carrier Sprint. Apple has also removed remaining references to Sprint from its online store. When checking out with a new purchase, Sprint is no longer an option for connectivity, a change that Apple appears to have implemented today. Prior to now, Sprint...
airpodsd 3 purple 4

iOS 16.4 Seemingly References New AirPods and AirPods Case

Tuesday March 21, 2023 11:43 am PDT by
The iOS 16.4 release candidate version that was provided to developers today appears to hint at a new set of AirPods that could be coming in the near future. According to @aaronp613, the beta features references to AirPods that have a model number of A3048 and an AirPods case with a model number of A2968. There have been no rumors that new AirPods are on the horizon, and it is early for...