M1 Ultra Mac Studio is 2 Pounds Heavier Than M1 Max Version Due to Thermal Differences
The Mac Studio comes in two varieties, one with the same M1 Max chip used in the 2021 MacBook Pro models and a second featuring an M1 Ultra chip, which is two interconnected M1 Max chips that operate as a single chip.

Following yesterday's event, Apple's technical specifications for the Mac Studio went live, and there was a curiosity - the M1 Ultra version of the Mac Studio is a full two pounds heavier than the M1 Max version, and it wasn't clear why. Apple today provided an explanation to The Verge, and it turns out the two machines have a different thermal setup.
According to Apple, the M1 Ultra has a copper thermal module, while the M1 Max has an aluminum heatsink. Copper is heavier than aluminum, hence the weight difference. The M1 Max Mac Studio weighs in at 5.9 pounds, while the M1 Ultra version is 7.9 pounds.
They have the same 370W power supply. The additional weight is due to M1 Ultra having a larger copper thermal module, where as M1 Max has an aluminum heatsink.
Different thermal management setups is not a surprise given the power of the M1 Ultra vs. the standard M1 Max. The M1 Ultra includes a 20-core CPU and up to a 64-core GPU for double the computing power of the M1 Max. Despite the high-powered chip, Apple has said that the Mac Studio is able to run quietly, with an architecture that that pulls air in through the airflow channels on the bottom using double-sided blowers and pushes it out through additional perforations on the back of the chassis.
Popular Stories
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below.
Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone.
In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker.
According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found.
Registered developers and public beta testers can download the betas from the Settings app on...
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max.
One thing worth...
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports.
Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future.
"I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman.
Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
You'd expect things to be starting to wind down for the holidays by now, but that doesn't seem to be the case yet in the world of Apple news, with Apple just about ready to release iOS 26.2 and other operating system updates to the public.
There was also a flurry of news this week about Apple executive departures, some expected and some not so expected, while we also learned that Apple and...
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device.
Subscribe to the MacRumors YouTube channel for more videos.
Below, we've collated an updated set of key details that ...