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Apple Unveils The M1 Ultra Chip, Debuts On The New Mac Studio

Apple M1 Ultra Chip

Apple today announced M1 Ultra, the next giant leap for Apple silicon and the Mac. Featuring UltraFusion — Apple’s innovative packaging architecture that interconnects the die of two M1 Max chips to create a system on a chip (SoC) with unprecedented levels of performance and capabilities — M1 Ultra delivers breathtaking computing power to the new Mac Studio while maintaining industry-leading performance per watt.

Apple Unveils The M1 Ultra Chip, Debuts On The New Mac Studio

The new SoC consists of 114 billion transistors, the most ever in a personal computer chip. M1 Ultra can be configured with up to 128GB of high-bandwidth, low-latency unified memory that can be accessed by the 20-core CPU, 64-core GPU, and 32-core Neural Engine, providing astonishing performance for developers compiling code, artists working in huge 3D environments that were previously impossible to render, and video professionals who can transcode video to ProRes up to 5.6x faster than with a 28-core Mac Pro with Afterburner.

“M1 Ultra is another game-changer for Apple silicon that once again will shock the PC industry. By connecting two M1 Max die with our UltraFusion packaging architecture, we’re able to scale Apple silicon to unprecedented new heights,” “With its powerful CPU, massive GPU, incredible Neural Engine, ProRes hardware acceleration, and huge amount of unified memory, M1 Ultra completes the M1 family as the world’s most powerful and capable chip for a personal computer.”Johny Srouji, Apple’s senior vice president of Hardware Technologies.

Groundbreaking UltraFusion Architecture

Apple Unveils The M1 Ultra Chip, Debuts On The New Mac Studio

The foundation for M1 Ultra is the extremely powerful and power-efficient M1 Max. To build M1 Ultra, the die of two M1 Max are connected using UltraFusion, Apple’s custom-built packaging architecture. The most common way to scale performance is to connect two chips through a motherboard, which typically brings significant trade-offs, including increased latency, reduced bandwidth, and increased power consumption. However, Apple’s innovative UltraFusion uses a silicon interposer that connects the chips across more than 10,000 signals, providing a massive 2.5TB/s of low latency, inter-processor bandwidth — more than 4x the bandwidth of the leading multi-chip interconnect technology. This enables M1 Ultra to behave and be recognised by software as one chip, so developers don’t need to rewrite code to take advantage of its performance. There’s never been anything like it.

Unprecedented Performance and Power Efficiency

M1 Ultra features an extraordinarily powerful 20-core CPU with 16 high-performance cores and four high-efficiency cores. It delivers 90 percent higher multi-threaded performance than the fastest available 16-core PC desktop chip in the same power envelope. Additionally, M1 Ultra reaches the PC chip’s peak performance using 100 fewer watts.2 That astounding efficiency means less energy is consumed and fans run quietly, even as apps like Logic Pro rip through demanding workflows, such as processing massive amounts of virtual instruments, audio plug-ins, and effects.

A chart showing the 20-core CPU performance of M1 Ultra.
A chart showing the 20-core CPU performance of M1 Ultra.

For the most graphics-intensive needs, like 3D rendering and complex image processing, M1 Ultra has a 64-core GPU — 8x the size of M1 — delivering faster performance than even the highest-end PC GPU available while using 200 fewer watts of power.3

The GPU performance per watt of M1 Ultra.

Apple’s unified memory architecture has also scaled up with M1 Ultra. Memory bandwidth is increased to 800GB/s, more than 10x the latest PC desktop chip, and M1 Ultra can be configured with 128GB of unified memory. Compared with the most powerful PC graphics cards that max out at 48GB, nothing comes close to M1 Ultra for graphics memory to support enormous GPU-intensive workloads like working with extreme 3D geometry and rendering massive scenes. The 32-core Neural Engine in M1 Ultra runs up to 22 trillion operations per second, speeding through the most challenging machine learning tasks. And, with double the media engine capabilities of M1 Max, M1 Ultra offers unprecedented ProRes video encode and decode throughput. In fact, the new Mac Studio with M1 Ultra can play back up to 18 streams of 8K ProRes 422 video — a feat no other chip can accomplish.4 M1 Ultra also integrates custom Apple technologies, such as a display engine capable of driving multiple external displays, integrated Thunderbolt 4 controllers, and best-in-class security, including Apple’s latest Secure Enclave, hardware-verified secure boot, and runtime anti-exploitation technologies.

Apple Unveils The M1 Ultra Chip, Debuts On The New Mac Studio

macOS and Apps Scale Up to M1 Ultra

Deep integration between hardware and software has always been at the heart of the Mac experience. macOS Monterey has been designed for Apple silicon, taking advantage of M1 Ultra’s huge increases in CPU, GPU, and memory bandwidth. Developer technologies like Metal let apps take full advantage of the new chip, and optimisations in Core ML utilise the new 32-core Neural Engine, so machine learning models run faster than ever. Users have access to the largest collection of apps ever for Mac, including iPhone and iPad apps that can now run on Mac, and Universal apps that unlock the full power of the M1 family of chips. Apps that have not yet been updated to Universal will run seamlessly with Apple’s Rosetta 2 technology.

Apple Unveils The M1 Ultra Chip, Debuts On The New Mac Studio

Another Leap Forward in the Transition to Apple Silicon

Apple has introduced Apple silicon to nearly every Mac in the current lineup, and each new chip — M1, M1 Pro, M1 Max, and now M1 Ultra — unleashes amazing capabilities for the Mac. M1 Ultra completes the M1 family of chips, powering the all-new Mac Studio, a high-performance desktop system with a reimagined compact design made possible by the industry-leading performance per watt of Apple silicon.

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Apple Unveils The M1 Ultra Chip, Debuts On The New Mac Studio 21
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Chief Content Developer at The AXO

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