Nvidia has unveiled RTX Spark, a new AI chip designed to run large language models locally on Windows-based laptops. The Arm-based system-on-chip was co-developed with MediaTek and integrates a 20-core Grace CPU and a Blackwell-generation GPU. Nvidia said it can support up to 128GB of LPDDR5X memory and run LLMs with up to 120 billion parameters. Microsoft and several PC makers plan devices using the chip in fall 2026.

Nvidia has introduced its RTX Spark integrated PC chip aimed at AI agents, lifting expectations for renewed consumer demand for PCs. Microsoft and Apple are also accelerating efforts to reshape PCs with AI after earlier initiatives fell short of impact. Nvidia is working with Microsoft and PC makers to enable AI agents to use mouse and keyboard autonomously. Competition is also in focus between Apple and an Nvidia-Microsoft alliance in laptops and Arm-based PCs.