Arm's New CPU, GPU Cores to Deliver Next-Gen AI Experiences on Phones

pcmag.com:

At Computex 2023, Arm revealed its new "platform for mobile computing"—the TSC23. This system-on-a-chip contains the powerful Armv9 Cortex-X4 CPU core, the balanced Cortex-A720 cores, and the Immortalis-G720 GPU. The company also announced slightly less powerful CPUs and GPUs for more affordable devices.

The eight-core cluster, which ARM calls the DSU-120, replaces the previous generation DSU-110 cluster used in the popular Snapdragon 8 Gen 2 SoC.

The cluster has two Cortex-X4 high-performance cores, which handle the most demanding tasks. They deliver 15% more speed while using 40% less power than the previous-generation Cortex-X3 chip. The four Cortex-A720 cores are for balancing energy use and performance and feature 20% more efficiency than the A715 cores. Finally, two Cortex-A520 cores round out the cluster and are for performing tasks that require minimal power. Arm says this is the "most performant high-efficiency core ever," with 22% more power efficiency over the outgoing A515 core.

Arm also revealed a powerful new GPU architecture for mobile devices called the Immortalis-G720. The company says it will offer 15% more performance than the previous generation and 40% less memory bandwidth usage. It should be a powerful upgrade to last year's Immortalis-G715, which was the company's first to offer hardware acceleration for ray tracing.

The DSU-120 compute cluster paired with the Immortalis-G720 GPU form the center of the TSC23, which replaces the TSC22 in Arm's lineup.

While the company didn't reveal which phones or chipmakers will use its new hardware, it made clear that this platform is designed for high-end flagships, such as the Samsung Galaxy 23 Ultra. Logically, because Qualcomm uses the Arm Cortex-X3 in