Apple Introduces M3 Ultra Chip With Impressive Performance, Up to 512GB of RAM, and More

Apple today unveiled the M3 Ultra chip, its fastest Mac chip ever released. It is available in the new Mac Studio that was also announced today.

M3 Ultra Chip
Apple says the M3 Ultra chip is essentially two M3 Max chips fused together with its "UltraFusion" technology, so the chip's specs are all doubled compared to the M3 Max. There was speculation last year about the M3 Max chip lacking UltraFusion technology, but Apple's announcement today has proven that rumor was false.

Apple:

Apple's custom-built UltraFusion packaging technology uses an embedded silicon interposer that connects two M3 Max dies across more than 10,000 signals, providing over 2.5TB/s of low-latency interprocessor bandwidth, and making M3 Ultra appear as a single chip to software.

The M3 Ultra chip features up to a 32-core CPU, with 24 performance cores and eight efficiency cores. Apple says the M3 Ultra chip is up to 1.5x faster than the M2 Ultra chip, and up to 1.8x faster than the M1 Ultra chip.

In addition, the M3 Ultra chip can be configured with up to an 80-core GPU. Apple says the M3 Ultra chip offers up to 2x faster graphics performance than the M2 Ultra, and up to 2.6x faster graphics than the M1 Ultra chip.

The chip has a 32-core Neural Engine, and it supports up to 512GB of unified RAM, with up to 819 GB/s memory bandwidth.

Like the M4 Pro and M4 Max chips, the M3 Ultra chip supports Thunderbolt 5 for up to 120 GB/s data transfer speeds on Macs with Thunderbolt 5 ports.

Apple says the M3 Ultra chip has industry-leading power efficiency in its class.

Popular Stories

apple store down feature

Here's Why the Apple Store is Going Down

Thursday November 27, 2025 1:01 pm PST by
Apple's online store is going down for a few hours on a rolling country-by-country basis right now, but do not get your hopes up for new products. Apple takes its online store down for a few hours ahead of Black Friday every year to tease/prepare for its annual gift card offer with the purchase of select products. The store already went down and came back online in Australia and New Zealand, ...
iPhone Pocket Short

iPhone Pocket is Now Completely Sold Out Worldwide

Tuesday November 25, 2025 7:16 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. However, it is now completely sold out in all countries where it was released. iPhone Pocket became available to order on Apple's online store starting Friday, November 14, in the United States, France, China, Italy, Japan, Singapore, ...
Apple Foldable Thumb

Foldable iPhone to Debut These Three Breakthrough Features

Tuesday November 25, 2025 7:09 am PST by
Apple's first foldable iPhone is expected to launch alongside the iPhone 18 Pro models in fall 2026, and it's shaping up to include three standout features that could set it apart from the competition. The book-style foldable will reportedly feature an industry-first 24-megapixel under-display camera built into the inner display, according to a recent JP Morgan equity research report. That...
streaming black friday 2025

Black Friday Streaming Deals Include Big Savings on Disney+, Hulu, Apple TV, and More

Monday November 24, 2025 8:03 am PST by
We've been focusing on deals on physical products over the past few weeks, but Black Friday is also a great time of year to purchase a streaming membership. Some of the biggest services have great discounts for new and select returning members this week, including Disney+, Hulu, Paramount+, Peacock, and more. Note: MacRumors is an affiliate partner with some of these vendors. When you click a...
streaming black friday 2025

Best Black Friday Streaming Deals - Save Big on Apple TV, Disney+, Hulu, and More

Thursday November 27, 2025 1:14 pm PST by
We've been focusing on deals on physical products over the past few weeks, but Black Friday is also a great time of year to purchase a streaming membership. Some of the biggest services have great discounts for new and select returning members this week, including Apple TV, Disney+, Hulu, Paramount+, Peacock, and more. Note: MacRumors is an affiliate partner with some of these vendors. When...
New Intel Logo

Apple and Intel Rumored to Partner on Mac Chips Again in a New Way

Friday November 28, 2025 7:33 am PST by
While all Macs are now powered by Apple's custom-designed chips, a new rumor claims that Apple may rekindle its partnership with Intel, albeit in a new and limited way. Apple supply chain analyst Ming-Chi Kuo today said Intel is expected to begin shipping Apple's lowest-end M-series chip as early as mid-2027. Kuo said Apple plans to utilize Intel's 18A process, which is the "earliest...
General Apps Messages Redux

Singapore Orders Changes to iMessage by December

Tuesday November 25, 2025 6:39 am PST by
Singapore has ordered Apple to block or filter messages on iMessage that impersonate government agencies, requiring the company to implement new anti-spoofing protections by December as part of efforts to curb rising online scams, the Straits Times reports. Singapore's Ministry of Home Affairs (MHA) said that it had issued an Implementation Directive to Apple under the Online Criminal Harms...
iphone air camera

iPhone Air Flop Sparks Industry Retreat From Ultra-Thin Phones

Thursday November 27, 2025 3:14 am PST by
Apple's disappointing iPhone Air sales are causing major Chinese mobile vendors to scrap or freeze their own ultra-thin phone projects, according to reports coming out of Asia. Since the ‌iPhone Air‌ launched in September, there have been reports of poor sales and manufacturing cuts, while Apple's supply chain has scaled back shipments and production. Apple supplier Foxconn has...

Top Rated Comments

johnalan Avatar
10 months ago
I'm not a hardware engineer, but it feels a little bizarre/confusing with the current line up...

M4 Max in latest MBP and Studio, but the M3 Ultra is the best in the Studio? - the Mac Pro still on M2 Ultra...
Score: 33 Votes (Like | Disagree)
abatabia Avatar
10 months ago
Just when you thought they were done with M3….
Score: 14 Votes (Like | Disagree)
cicalinarrot Avatar
10 months ago
I am confusion
Score: 12 Votes (Like | Disagree)
Ferrandix Avatar
10 months ago
They are screwing up with product segmentation and naming. Just like the iPad line up. This is confusing and counter intuitive. If Apple (Apple!) is making complicated product line ups with confusing understanding, we are already doomed.
Score: 12 Votes (Like | Disagree)
MayaUser Avatar
10 months ago
Now, apple has to update the studio displays with TB 5 as well
Score: 10 Votes (Like | Disagree)
dricci Avatar
10 months ago
There was a time when variations of the G3 and G4 and then G4 and G5 coexisted in Apple's lineup.
Score: 7 Votes (Like | Disagree)