NVIDIA RTX Spark N1X Specs Confirmed: 6,144 CUDA Cores in New Driver

NVIDIA has released its first native GeForce graphics driver for Windows 11 on Arm, marking a critical step for the new RTX Spark platform. This release matters because it confirms the hardware specifications for the upcoming RTX Spark N1X chips that will power thin laptops and mini PCs. Buyers waiting for native Arm-based gaming performance now have concrete data on what to expect from the underlying silicon.

Developer preview driver validates Blackwell GPU architecture for thin laptops

The GeForce 616.00 driver serves as a Developer Preview that targets the Microsoft Surface RTX Spark Dev Box rather than consumer laptops. NVIDIA uses this release to validate the Blackwell GPU architecture on the Arm processor before pushing a stable version to the public. The driver does not yet identify the specific desktop entry in its installation files, leaving the exact consumer model unconfirmed at this stage.

• GPU Architecture: Blackwell
• CUDA Cores (High Config): 6,144
• CUDA Cores (Low Config): 5,120
• CPU Cores (High Config): 20
• CPU Cores (Low Config): 18

The driver INF file reveals two distinct configurations for the RTX Spark N1X GPU. The higher-end model features 6,144 CUDA cores, 48 Streaming Multiprocessors, and a 20-core Arm CPU. The lower-end variant scales down to 5,120 CUDA cores, 40 SMs, and an 18-core Arm CPU. Both configurations support up to 128GB of LPDDR5X unified memory.

NVIDIA labeled GeForce 616.00 as a Developer Preview to signal that it is not yet ready for general consumer use. The company requires a later WHQL-certified driver before shipping consumer RTX Spark systems to ensure stability and compatibility. We looked at Nvidia RTX Spark ARM chip brings in our earlier Nvidia coverage to track the platform's development.

This driver release confirms the core hardware roadmap for NVIDIA's Arm-based gaming devices. The specifications outline the performance baseline for the upcoming RTX Spark N1X processors. Consumers should expect a stable driver update before any retail devices become available.