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Nvidia unveils RTX Spark AI chip for Windows laptops, fall launch expected

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.