Computex 2024 starts off with quite a big bang for the mobile warriors as Arm announced a new CPU and GPU core alongside Arm’s KleidiAI platform for speedy on-device processing that allows more purposes.
By the way – one big claim is that Arm estimates it’ll power over 100 billion devices by 2025. Honestly, I think that’s possible since there are so many devices are powered by Arm nowadays.
New Arm CSS
Introducing, the new Arm CSS – also known as the compute subsystem that is built on Armv9 platform. It is going to be compatible with mobile phones and even PCs since we now have proper Windows on Arm software to utilize this powerful hardware.
The new subsystem promises double-digit IPC (instructions per second) improvement alongside better compute and graphics performance. Of course, we can’t forget about AI since that is one of the main focus of this year.
Cortex-X925 core
Arm just announced a new high-performance core within the Cortex-X series with an entirely new naming scheme – the Cortex-X925. I think this new naming scheme is justified as it has 36% uplift in Geekbench single-core performance, and 41% AI performance improvement compared to the Cortex-X4.
That’s a huge improvement over the existing performance – but we have no idea about the power draw as of now. For all that we know, this new Cortex-X925 is optimized for the 3nm process nodes with 3.8GHz clock speeds and “maximum cache size”.
Cortex-A725 and refreshed Cortex-A520 CPU
We also have a new A-series CPU for general purposes usage that can deliver 35% improvement in performance efficiency, including gaming.
The Cortex-A520 CPU is refreshed with an updated DSU-120 that provides better power efficiency and scalability for devices that adopt these latest Armv9 CPU clusters.
Immortalis-G925 GPU
As for the graphics department, this new Immortalis-G925 GPU will deliver up to 37% more performance compared to the predecessor, 34% better AI inferencing speed, and also a massive 52% improvement in ray-tracing performance. I’m curious how this new Immortalis-G925 GPU will compete against the AMD RDNA 3-based Xclipse 940 GPU found in the Exynos 2400.
The Immortalis-G925 GPU will be the highest-end GPU within Arm’s lineup of mobile GPUs, while the Mali GPUs are for the more budget options.
Arm KleidiAI
This is a new program from Arm to accelerate AI on Arm CPUs. KleidiAI is a framework that requires no extra work from the developers and it will improve generative AI workloads. It can be considered as a platform for language models to take advantage of the latest computing power – as the time-to-first token for Meta’s Llama 3 LLM was improved by 190% on the new Arm Cortex-X925 CPU thanks to KleidiAI’s optimizations.
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