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
U.S. President Donald Trump on Wednesday announced that steep tariffs will be applied to imports from many countries, starting April 9. The tariffs could have a significant impact on Apple, as the company assembles the majority of iPhones in China, and products imported to the U.S. from China will be subject to a 54% tariff.
iPhone prices could increase by up to 43% in the U.S. due to the...
iOS 19 will not be available on the iPhone XR, iPhone XS, or the iPhone XS Max, according a private account on social media site X that has accurately provided information on device compatibility in the past.
The iPhone XR, iPhone XS, and iPhone XS Max all have an A12 Bionic chip, so it looks like iOS 19 will discontinue support for that chip. All other iPhones that run iOS 18 are expected...
Apple today released watchOS 11.4, the fourth major update to the operating system that runs on the Apple Watch. watchOS 11.4 is compatible with the Apple Watch Series 6 and later, all Apple Watch Ultra models, and the Apple Watch SE 2.
watchOS 11.4 can be downloaded on a connected iPhone by opening up the Apple Watch app and going to General > Software Update. To install the new software,...
If you have an older Apple device that you've been considering upgrading, you're probably wondering how the newly announced tariffs might impact prices going forward, and whether it's worth buying now before there's a price hike.
Given analyst and economist responses to the tariffs, market panic, and Trump's stance on the current financial chaos, the answer is that making a purchase...
Apple is reportedly planning a major upgrade to the Telephoto camera in the iPhone 17 Pro, and while it may seem like a step back on paper, the change could actually improve real-world usability, if one leaker's claims are anything to go by.
According to Majin Bu, the iPhone 17 Pro will feature a new Telephoto lens with a 48MP sensor, up from the current 12MP sensor found in the iPhone 16...
Apple today seeded the first betas of upcoming iOS 18.5 and iPadOS 18.5 updates to developers for testing purposes, with the software coming just two days after Apple released iOS 18.4 and iPadOS 18.4.
iOS 18.5 and iPadOS 18.5 can be downloaded from the Settings app on a compatible device by going to General > Software Update.
We don't yet know what Apple is introducing in the iOS 18.5...
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of March 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 ...
