Apple unveils M3 Ultra chip for new Mac Studio

# Apple unveils M3 Ultra chip for new Mac Studio

Event date: 2025-03-05

Apple has introduced M3 Ultra, a new high-end chip for Mac Studio that the company says delivers its most powerful CPU and GPU yet. The official Apple newsroom post gives the full outline: more cores, more memory, new connectivity, and a clear target audience of professionals running demanding workloads.

At the center of the announcement is scale. Apple says M3 Ultra uses UltraFusion to link two M3 Max dies through more than 10,000 high-speed connections, creating a single chip with 184 billion transistors. The chip is offered with up to a 32-core CPU, up to an 80-core GPU, and a 32-core Neural Engine. Apple also says it can be configured with up to 512GB of unified memory, which it describes as the most ever in a personal computer.

That memory figure is one of the headline features because it changes what the machine can do in practice. Apple says the chip is designed for AI work, large language models, 3D rendering, visual effects, and other heavily threaded tasks. It also says Mac Studio with M3 Ultra can run models with more than 600 billion parameters directly on device, making the hardware relevant not just to video editors and designers but to AI developers as well.

Another major change is Thunderbolt 5. Apple says the new Mac Studio includes Thunderbolt 5 with up to 120 Gb/s data transfer speeds, more than double Thunderbolt 4, and that each port has its own controller built into the chip. That should matter for users moving very large files, attaching multiple displays, or connecting external storage and expansion gear.

Apple also made performance claims against earlier chips. It says M3 Ultra delivers up to 1.5 times the performance of M2 Ultra and up to 2.6 times the performance of M1 Ultra in the GPU. Those comparisons are Apple's own and should be reported as such, but they are central to the launch pitch: this is not a generic refresh, it is meant to be the company’s most capable desktop silicon.

The broader context is that Apple is still trying to position its own silicon as the default choice for high-end creative and technical work. M3 Ultra keeps the pitch focused on power efficiency as well as raw performance, with the company saying the architecture preserves the energy advantages of Apple silicon.

For readers, the story is not just that Apple released a new chip. It is that Apple is pushing further into workstation territory, pairing a very large unified-memory pool with a faster interconnect standard and a larger GPU than anything it had shipped before. That combination defines the new Mac Studio as a machine for people who need desktop-class compute without stepping into a traditional tower workstation.