Nvidia begins preparing N1X Windows 11 GPU drivers ahead of RTX Spark Arm PCs launch

Windows Latest reports that Nvidia has started publishing N1X Windows GPU drivers, with version 616.00 being the first official release optimized specifically for the Surface RTX Dev Box. While these drivers are not meant for consumer devices yet, they confirm that the first RTX Spark Arm PCs are one step closer to launch, lining up with Nvidia's anticipated holiday season release window. The driver package, distributed as a native Windows 11 Arm64 package, contains an INF file (nv_surface_woa.inf) that lists several Nvidia device IDs including two different RTX Spark N1X GPU configurations — one with a 6,144-core Blackwell RTX GPU and another with a 5,120-core Blackwell RTX GPU — plus an unidentified "NVIDIA Desktop Device" likely related to compact RTX Spark desktop designs, and NPU entries based on Nvidia's Deep Learning Accelerator (DLA) architecture.

The driver publication marks a significant milestone in RTX Spark's journey from announcement to shipping product, providing the first concrete evidence that Nvidia is actively building the software ecosystem required for its Arm-based PC platform. Windows Latest notes that the drivers were published on Nvidia's official website, signalling internal readiness even though consumer-facing devices are still months away. The two distinct GPU configurations visible in the INF file suggest Nvidia and its OEM partners are preparing multiple RTX Spark N1X SKUs targeting different performance tiers and price points — with the 6,144-core variant aligning with the previously announced flagship N1X configuration while the 5,120-core variant could power more affordable systems or thinner form factors with tighter thermal budgets.

Windows Latest also contextualizes the driver release within the broader RTX Spark ecosystem, noting that Microsoft is optimizing Windows 11 26H1 for RTX Spark's heterogeneous Arm architecture through a new Workload Profile Scheduling (WPS) feature that ensures efficient workload distribution across all 20 cores. Microsoft has also optimized the Windows scheduler and is refining memory management so the unified RAM architecture doesn't feel constrained. The report reinforces that multiple RTX Spark-based PCs will begin shipping this fall, including the Surface Laptop Ultra and Lenovo Yoga Pro 9n, following the May 31 joint announcement by Nvidia and Microsoft that positioned RTX Spark as a new category of Windows on Arm computing purpose-built for developers, creators, and power users in the agentic AI era.