NVIDIA's RTX Spark system-on-chip (SoC) is on track to launch this fall, powering a new wave of Windows on Arm devices with its Grace CPU and RTX Blackwell GPU architecture. Announced at Computex 2026, RTX Spark marks NVIDIA's debut in the APU space, and the first devices will arrive as powerful premium laptops and mini PCs from companies like ASUS, Dell, HP, Lenovo, MSI, and more, with support for up to 127GB of unified memory.
Although specific dates, pricing, and even in-depth performance targets are still TBC, NVIDIA has released its first RTX Spark 'Developer Preview' driver so that developers can start porting their apps to Windows on Arm.
Trending Now: Valve confirms if Half-Life 3 will be a Steam Machine exclusive"Developers can begin preparing their applications for Windows on Arm and RTX Spark today," NVIDIA writes in a new post on its developer forums. "You do not need RTX Spark hardware to get started; an existing Windows on Arm development system can be used to port your application, identify incompatible dependencies, and bring up an initial Arm64 build."
This release also coincides with the CUDA 13.4 Toolkit, which adds "Native Windows Arm64 development for the upcoming RTX Spark device" and "Cross-compiling Windows Arm64 CUDA applications using the Windows x86_64 Toolkit." With the preview, which includes both drivers and CUDA, developers can build and test applications running on RTX Spark-powered Windows on Arm devices, including both functionality and performance.
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There's also a mention of validation for when hardware and official software become available, so we might end up seeing everything from apps to games carrying some sort of 'built for RTX Spark' badge at launch. At Computex 2026, we had the chance to go hands-on with several RTX Spark devices, including sitting in on a Microsoft demonstration outlining all of the updates and improvements that are coming to Windows on Arm in preparation for the RTX Spark launch.
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