ARM has launched its fifth generation Cortex-X core for smartphones along with a compute sub-system (CSS) with the latest high performance graphics unit.
www.eenewseurope.com/, May. 29, 2024 –
The smartphone compute sub-system (CSS) combines the ARM Cortex-X925, the successor the X4, and the Immortalis G925 GPU core. These are combined with refreshed ARM A-class cores, the A725 and A520 for big.LITTLE architectures ready designed for chip makers. These have a system management wrapper, the Dynamiq DS-120, that manages the data flow between up to 14 cores.
The CSS is aimed squarely at adding AI to Android smartphones through chips such as the Mediatek Dimensity 9400 as well as Windows and Linux PCs, with chips designed for the 3nm process at TSMC and Samsung and the 1.8nm 18A process at Intel Foundry Services (IFS).
ARM has also launched library software that runs popular generative AI frameworks such as Llama 3 and
There are two versions of the Kleidi library to support generative AI and computer vision that support the ARMv9.2 instruction set to use the X925 CPU cores.
KleidiAI integrates with popular AI frameworks such as PyTorch, Tensorflow, MediaPipe Microsoft Phi-3 and Meta Llama 3, and is also backwards and forwards compatible.
KleidiCV accelerates CV pipelines that are used for many camera use cases. OpenCV, the world's largest CV library containing over 2500 algorithms and supporting hundreds of thousands of developers, has already identified a typical performance uplift of 75 percent for a variety of image processing tasks based on KleidiCV integrations.
The Cortex-X95 provides a 36% increase in performance through an increase in frequency from 3.6GHz to 3.8GHz as well as a higher instruction per cycle (IPC) rate and a larger private L2 cache that is 2MB 8-way set associative with 4 banks or 3MB 12-way set associative with 4 banks.
The Immortalis GPU brings a 37% increase in graphics performance with between 10 processing units and 24, up from 16, along with the ray tracing capability that was introduced with the previous version.