NVIDIA's first GeForce driver for Windows on Arm confirms RTX Spark N1X with 6,144 or 5,120 CUDA cores

VideoCardz reports that NVIDIA has released its first GeForce driver for Windows on Arm, with the driver package revealing the RTX Spark N1X superchip will ship in two distinct GPU configurations: one with 6,144 CUDA cores and another with 5,120 CUDA cores. The GeForce driver release represents a significant milestone for NVIDIA's Arm-based PC platform, as it marks the first time NVIDIA's consumer gaming driver stack — the same Game Ready driver framework used on x86 Windows systems — is available natively for the Windows on Arm ecosystem. While NVIDIA had previously released developer preview drivers (version 616.00) targeting the Surface RTX Dev Box and CUDA Toolkit 13.4 for Windows Arm64, the GeForce driver signals that NVIDIA is progressing toward consumer readiness for RTX Spark hardware ahead of its Fall 2026 launch window.

The two GPU configurations visible in the GeForce driver's INF file align with the RTX Spark N1X specifications that have been gradually confirmed through leaks and official disclosures over the past month. The 6,144-core variant represents the flagship N1X configuration — the same Blackwell GPU previously confirmed at NVIDIA's Computex 2026 announcement, offering RTX 5070-class gaming performance with DLSS 4.5 Ray Reconstruction and Multi Frame Generation support. The 5,120-core variant appears to be a lower-tier SKU designed for thinner laptop form factors or more affordable RTX Spark systems, consistent with the multiple device IDs previously identified in the N1X Windows GPU driver that Windows Latest reported on July 18. VideoCardz notes that the GeForce driver for Windows on Arm is a native Arm64 package, confirming that NVIDIA has compiled its entire consumer driver stack — including the Control Panel, DLSS framework, and game-optimization profiles — natively for the Arm architecture rather than relying on x86 emulation through Microsoft's Prism layer.

For Canadian consumers tracking RTX Spark's progress toward its Fall 2026 launch, the arrival of native GeForce drivers for Windows on Arm is a strong signal that NVIDIA is on track for its consumer hardware debut. The distinction between developer preview drivers and full GeForce Game Ready drivers matters because it indicates that NVIDIA has completed the complex work of porting its consumer gaming driver stack — including all the game-specific optimizations, performance tuning, and stability testing — to the Arm64 Windows platform. While VideoCardz doesn't specify whether this initial GeForce driver release is a public beta or a limited preview, the existence of a native Arm64 GeForce driver package confirms that RTX Spark gaming laptops and compact desktops from Microsoft, ASUS, Dell, HP, Lenovo, and MSI will be supported by NVIDIA's full driver ecosystem at launch, eliminating one of the major uncertainties about the platform's consumer readiness. Canadian early adopters should still expect typical first-generation driver maturity issues, but the GeForce driver milestone removes a key barrier to RTX Spark's viability as a gaming platform.