
New form factor between Mac mini and Mac Pro. M1 Ultra has 20-core CPU and 64-core GPU.
The Mac Studio introduced an entirely new category into Apple's desktop lineup, a compact yet immensely powerful pro-tier tower positioned neatly between the consumer iMac and the massive modular Mac Pro tower, and it announced itself with one of the most audacious pieces of silicon engineering Apple had shown to date: the M1 Ultra. Rather than designing a wholly separate high-end chip, Apple used a custom silicon interposer called UltraFusion to physically fuse two complete M1 Max dies together, creating a single chip the operating system saw as one unified processor with up to a 20-core CPU, a 64-core GPU, and a staggering 128GB of unified memory bandwidth exceeding 800GB/s, all while retaining the same fundamental efficiency advantages that had made the original M1 so remarkable. Housed in a dense, squared-off aluminum enclosure roughly the footprint of a Mac mini but taller, the Studio packed genuine workstation-class thermal engineering, including a substantial internal heatsink and dual-fan design, to sustain that performance continuously rather than in short bursts. For video editors, 3D artists, and audio professionals who had watched the Mac Pro tower sit for years without an Apple Silicon successor, the Mac Studio, especially in Ultra configuration, arrived as an unexpectedly perfect solution: desktop performance rivaling or beating the Intel Mac Pro's Xeon-based multi-core numbers in many real-world creative workloads, at a fraction of the size, noise, and often the price. Reviewers were impressed not just by the raw benchmark numbers but by the sheer engineering audacity of fusing two chips together as if they were one, a feat no competing PC chipmaker had achieved at this scale for a consumer or prosumer product at the time. Paired with the new Studio Display monitor, the Mac Studio filled a gap in Apple's lineup that had existed since the underpowered Mac mini and the impractically over-specced Mac Pro left a wide swath of prosumers without a great option. It proved Apple Silicon's UltraFusion architecture could scale to genuine workstation-class multi-chip performance, directly foreshadowing the M2 Ultra Mac Studio and Mac Pro that would follow a year later.
M1 Ultra fused two complete M1 Max dies via Apple's custom UltraFusion silicon interposer, appearing to software as a single chip with up to a 20-core CPU and 64-core GPU, delivering multi-chip workstation performance previously unseen in a consumer-oriented desktop. Compared to Intel Xeon-based workstations and AMD Threadripper desktop chips of the era, M1 Ultra offered comparable or superior performance in many creative workloads at dramatically lower power draw and noise. This dual-die fusion technique was a genuine engineering first for Apple, proving unified-memory Apple Silicon architecture could scale well beyond a single chip.

2022
Launched as the debut OS for the new Mac Studio and M1 Ultra chip.

2022
Added Stage Manager and Continuity Camera support later that same year.

2023
Continued full support with desktop widgets and improved gaming APIs.

2024
Brought numerous Apple Intelligence features to this workstation-class Mac.

2025
Remains actively supported and updated as of the most recent macOS releases.
The Mac Studio and its dual-die M1 Ultra chip were met with widespread admiration for delivering workstation-class performance in a strikingly compact new form factor.
Fusing two M1 Max chips together into one is a genuinely audacious piece of engineering, and the resulting performance rivals workstations many times its size.
This fills a real gap in the Mac lineup that's existed for years, serious desktop performance in a compact, quiet chassis, without needing the sprawling Mac Pro tower.
The Mac Studio is exactly the machine prosumers and many professionals have been waiting for. UltraFusion is a legitimately new trick in chip design.
It's compact, it's quiet, and in many creative workloads it beats the far larger, far louder Intel Mac Pro. This is a genuinely new and welcome category for Apple.