No M4 Ultra Chip? Apple Confirms the M4 Max Chip Lacks UltraFusion
A spokesperson for Apple has told French technology website Numerama that its M4 Max chip lacks an UltraFusion connector, which would have paved the way for the release of a doubled-up M4 Ultra chip in the future.
As we recently covered, Apple told Ars Technica that not every generation of M-series chips for Macs will include an "Ultra" chip. That seems like Apple indirectly confirming that it has no plans to release an M4 Ultra chip, and the M4 Max's lack of UltraFusion technology makes it even more likely there won't be an M4 Ultra chip.
Apple could still design an M4 Ultra chip from scratch, but it seems to have downplayed this possibility, according to the Numerama report.
The new Mac Studio announced today is available with M4 Max and M3 Ultra chip options, with no M4 Ultra chip offered. 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.
In summary, the M3 Max chip has an UltraFusion connector, but the M4 Max chip does not.
The M3 Ultra chip features up to a 32-core CPU, up to an 80-core GPU, a 32-core Neural Engine, and support for up to 512GB of unified RAM. 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. To learn more about the chip, read our coverage of Apple's announcement.
Popular Stories
Apple will finally deliver the Apple Watch Ultra 3 sometime this year, according to analyst Jeff Pu of GF Securities Hong Kong (via @jukanlosreve).
The analyst expects both the Apple Watch Series 11 and Apple Watch Ultra 3 to arrive this year (likely alongside the new iPhone 17 lineup, if previous launches are anything to go by), according to his latest product roadmap shared with...
The iPhone 17 Pro and iPhone 17 Pro Max are three months away, and there are plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of June 2025:Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X through iPhone 14 Pro have a...
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps.
Unfortunately, this feature continues to roll out very slowly since it was announced in 2021, with only nine U.S. states and Puerto...
Apple today seeded the first betas of upcoming iOS 18.6 and iPadOS 18.6 updates to public beta testers, with the betas coming just a few days after Apple provided the betas to developers.
Testers who have signed up for beta updates through Apple's beta site can download iOS 18.6 and iPadOS 18.6 from the Settings app on a compatible device by going to General > Software Update.
When the...
Apple this week revealed that iOS 26 is compatible with the iPhone 11 series and newer.
That means that iOS 18 is the end of the road for the iPhone XS, iPhone XS Max, and iPhone XR, which were all released in 2018. However, those devices will continue to receive security updates for at least a few more years.
iOS 26 is compatible with the following iPhone models:
iPhone 16e
iPhone...
With iOS 26, Apple has made some additions to the iPhone Lock Screen that aim to make it more customizable than ever.
Of course, things can always change before the software makes its way to the general iPhone-owning public, but here are five new things iOS 26 can do on the Lock Screen as of the current developer beta.
Widgets Top or Bottom
In iOS 18, the row of widgets on your Lock...
The Apple Watch Ultra 3 is expected to launch later this year, arriving two years after the previous model with a series of improvements.
While no noticeable design changes are expected for the third generation since the company tends to stick with the same Apple Watch design through three generations before changing it, there are a series of internal upgrades on the way.
By the time the ...
Every year between 2015 and 2024, at least one Apple executive agreed to be interviewed by Daring Fireball's John Gruber for a special WWDC episode of his podcast, The Talk Show. Last year, for example, Apple's software engineering chief Craig Federighi, marketing chief Greg Joswiak, and top AI researcher John Giannandrea joined Gruber on stage at the California Theatre in San Jose to discuss...
Apple is hiding a new ringtone within iOS 26.
The new ringtone is an alternative version of the existing Reflection ringtone, which has been the default ringtone since the iPhone X was released in 2017. It was discovered within the code for the first developer beta of iOS 26, but it remains hidden, so you will not find it in the list of ringtones available in the Settings app for now.
It...
