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.
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 is planning to announce several new features for the Messages and Phone apps on iOS 26, according to Bloomberg's Mark Gurman.
In a lengthy report outlining his WWDC 2025 expectations today, Gurman said that the two main changes in the Messages app will be the ability to create polls, as well as the option to set a background image within a conversation.
9to5Mac was first to report...
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the ultra-thin device.
Overall, the iPhone 17 Air sounds like a mixed bag. While the device is expected to have an impressively thin and light design, rumors indicate it will have some compromises compared to iPhone 17 Pro models, including worse battery life, only a single ...
While the spotlight has been on CarPlay Ultra lately, the regular version of CarPlay is set to receive some enhancements alongside iOS 26.
Apple will announce iOS 26 at WWDC 2025 next week, and the software update is expected to upgrade the CarPlay experience in at least two ways.
The first iOS 26 beta should be seeded to developers shortly after Apple's keynote, and the update will...
The Apple Watch provides highly accurate measurements of heart rate and step count, but their estimates of calories burned can be significantly off, according to a new peer-reviewed meta-analysis conducted by researchers at the University of Mississippi (via CNET).
The study reviewed 56 previously published studies evaluating the Apple Watch's performance against gold-standard clinical tools ...
If the Mail app on your iPhone is not working lately, you are not alone.
A growing number of iPhone users are seeing a blank screen in the Mail app, according to comments posted across the MacRumors Forums, Reddit, Apple Support Community, and other online discussion platforms. Affected users are unable to view any emails in their inboxes, and the app can also become glitchy and...
In a lengthy report outlining his WWDC 2025 expectations today, Bloomberg's Mark Gurman shared more details about iOS 26's rumored new design.
According to Gurman, iOS 26 will feature a "digital glass" design inspired by visionOS, the operating system for Apple's Vision Pro headset. That is a well-known rumor by now, but he goes on to provide some more specific details, as listed below:There ...
macOS 26 will drop support for several older Intel-based Mac models currently compatible with macOS Sequoia, according to a private account on X with a proven track record of leaking information about Apple's software platforms.
macOS 26 will be compatible with the following Mac models, the account said:MacBook Air (M1 and later)
MacBook Pro (2019 and later)
iMac (2020 and later)
Mac...
