Nvidia Unveils New RTX Spark Superchip for Windows on ARM PCs

Nvidia just revealed at its GTC conference in Taipei the RTX Spark, a new family of superchips that will power premium laptops and PCs from Microsoft, Dell, HP, Asus, Lenovo, and MSI later this fall. Nvidia has teamed up with Microsoft to optimize its RTX Spark chips for efficiency and power management, and Nvidia promised industry-leading performance for AI-powered workloads and PC gaming.

The Nvidia RTX Spark, which leverages TSMC’s 3nm manufacturing technology, features a 20-core Grace CPU connected to a Blackwell RTX GPU with 6,144 CUDA cores and fifth-generation Tensor Cores. The chip also offers 128 GB of LPDDR5X unified memory.

“To get the most out of Windows on RTX Spark’s powerful, heterogeneous architecture, we implemented workload profile scheduling (WPS) and optimized it for RTX Spark, enabling the Windows scheduler to more efficiently scale workloads across all 20 cores,” Microsoft explained today. “We also worked with NVIDIA to enable the Microsoft Power and Thermal Framework (MPTF) on RTX Spark, to maximize performance and power on the go.”

Microsoft also worked with Nvidia to optimize DirectX12, Windows ML, and the Prism emulator on Windows on ARM to deliver the best graphics and AI performance on RTX Spark-powered PCs. The company plans to share more details about how it’s optimizing Windows on RTX Spark at its Build conference this week.

The first laptops powered by Nvidia RTX Spark chips will be as thin as 14 millimeters and as light as three pounds, with a precision-machined aluminum chassis. One of the first RTX Spark laptops that was announced today is Microsoft’s Surface Laptop Ultra, a 15-inch premium laptop that will start shipping later this year.

Microsoft said that RTX Spark laptops and small form factor desktop PCS “will join the Copilot+ PC category, with powerful NPUs for local AI processing in addition to the GPU, unlocking rich AI-powered experiences.”