RTX Spark: Nvidia Unveiled Blackwell Chip for Windows PCs Instead of Qualcomm

At the Computex 2026 exhibition in Taipei, Nvidia unveiled a long-awaited innovation—RTX Spark, a version of the Blackwell superchip for standard Windows PCs. This Arm-based solution comes with official support from Microsoft and manufacturers like Asus, Dell, and Lenovo.

What's Inside RTX Spark

RTX Spark is an adaptation of the DGX Spark chip, which launched in late 2025 as a mini-workstation. It is officially called N1X. This system-on-chip features 20 Arm CPU cores, 6,144 GPU cores, and support for up to 128 GB of LPDDR5X memory. The main difference from the mini-workstation is power consumption. DGX Spark operates at 140 watts, while RTX Spark laptops will consume less, which will impact performance. Exact figures depend on each manufacturer.

RTX Spark also includes an NPU (neural processing unit) that qualifies the system for Microsoft's Copilot+ certification. The NPU handles background AI tasks like Windows Recall, while the GPU handles heavy lifting—large language models and image generation.

Microsoft is already preparing Surface Laptop Ultra and Surface RTX Spark Dev Box. Windows for DGX Spark desktops will arrive in Q3 2026.

Why Nvidia Instead of Qualcomm

History repeats itself. In June 2024, Qualcomm and Microsoft announced Copilot+ PCs based on Arm chips—an alternative to Intel and AMD x86 processors. The commercial results were mixed: Intel still dominates the laptop market. But RTX Spark could take a different trajectory.

Nvidia simply has more weight in the industry.

"Nvidia has more influence to attract game and software developers in the AI space.

Qualcomm couldn't do that initially," — Ryan Shrout, Signal65 analyst.

Nvidia's main advantage is absolute dominance in the GPU software stack. Its graphics cards are the standard for gamers and professionals. Nvidia controls over 90% of the GPU market. Game and AI software developers prioritize writing for Nvidia GPUs.

• GPU performance at mobile RTX 5070 level
• 90%+ of the GPU market belongs to Nvidia
• Mature drivers and a vast software ecosystem
• Professionals value stability and compatibility

The Windows on Arm Challenge

Nvidia's hook is good, but the challenge remains the same as with Qualcomm: Windows on Arm simply isn't gaining traction in the mass market. At the Build 2026 conference, Microsoft spoke loudly about AI and introduced Microsoft Execution Containers (MXC)—containers for AI agents that work autonomously but are isolated from other functions. But this is still a focus on AI, not on universal PCs.

The real test is whether RTX Spark will be a good universal PC. Just a PC, not a revolution.

What This Means

RTX Spark shows that AI in PCs is ceasing to be a gadget—the GPU is becoming a core component, not an add-on. For developers, this means that local LLM inference on a laptop is no longer fantasy. But the main question remains: will Windows on Arm be able to escape Qualcomm's niche past and take root in the mass market.