Monday, June 5, 2023

Apple Unveils The M2 Ultra

 At its Worldwide Developer Conference today, Apple unveiled the M2 Ultra, a new system on a chip (SoC) that completes the M2 family and offers significant performance improvements for the Mac.

The M2 Ultra, according to Johny Srouji, senior vice president of Hardware Technologies at Apple, is the company's biggest and most powerful chip to yet. Its performance is doubled thanks to the adoption of Apple's UltraFusion technology, which connects the die of two M2 Max circuits using a second-generation 5-nanometer manufacturing process. 

Twenty billion extra transistors than the M1 Ultra make up the 134 billion in the M2 Ultra. Its unified memory architecture boasts 800GB/s of memory bandwidth, which is twice as fast as M2 Max, and up to 192GB of memory capacity, which is allegedly 50% more than M1 Ultra. 

According to Srouji, the M2 Ultra has a stronger CPU that is 20% quicker than the M1 Ultra, a bigger GPU that is up to 30% faster, and a Neural Engine that is up to 40% faster. Additionally, it has a media engine for quicker ProRes acceleration that has twice the power of M2 Max. 

The UltraFusion, an Apple-developed packaging method, connects two M2 Max dies to create the M2 Ultra. Over 10,000 signals are used in the silicon interposer used by UltraFusion to connect the dies and deliver over 2.5TB/s of low-latency interprocessor bandwidth.

According to Srouji, the architecture of UltraFusion makes M2 Ultra appear to software as a single chip. This makes UltraFusion unique in the industry and means that code doesn't need to be rebuilt in order to take advantage of the exceptional performance of M2 Ultra, he continues.

Apple claims that the 24-core M2 Ultra CPU, which has eight next-generation high-efficiency cores and 16 next-generation high-performance cores, performs up to 20% quicker than an M1 Ultra. 

The next-generation core count for the GPU can be set at 60 or 76. Srouji claims that this is up to 12 cores more than the GPU in the M1 Ultra and up to a 30% improvement.

The M2 Ultra has a system memory bandwidth of 800GB/s. Additionally, 192GB of unified memory can be set.

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