Summary

  • Microsoft and Nvidia have unveiled the RTX Spark (N1/N1X) to supercharge Windows on Arm.
  • The chip features massive specs: 1 petaflop AI, 6,144 Blackwell RTX cores, 20 Arm CPU cores, up to 128GB RAM.
  • Surface Laptop Ultra debuts RTX Spark with MPTF and workload scheduling for power, cooling, and peak performance.

We recently caught wind that Microsoft, Nvidia, and Qualcomm were planning something big. We then saw a leak claiming that the trio was planning to pull back the curtain on the N1X and N1 chips, which would elevate Windows on Arm to a whole new level. Now, Nvidia and Microsoft have officially shown off the new chip to the world at Computex 2026, and it looks like it'll seriously shake up laptops.

Nvidia's N1X and N1 chips are now called RTX Spark

It's a game-changer

Over on the Windows Blog, Microsoft showed off what the RTX Spark can do. We're looking at 1 petaflop of AI performance, 6144 Blackwell RTX cores, 20 Arm-based CPU cores made in collaboration with MediaTek, and support for up to 128GB of unified RAM with a 300GB/s memory bandwidth.

Microsoft has also created workload profile scheduling (WPS) to optimize RTX Spark, ensuring Windows leverages all that hardware to its maximum capacity on day one. It manages to pack all of that in a tidy 45-80W power profile to keep it from draining the battery.

To keep everything cool, Nvidia enabled Microsoft Power and Thermal Framework (MPTF) on the chip. This will not only ensure that RTX Spark delivers the best performance for your charge, but also keep the internals at a good temperature no matter what you throw at it. And if you still need apps that don't have an Arm-native version released yet, RTX Spark has the 32 and 64-bit x86 Prism emulator "present and optimised" to get them running.

RTX Spark is built for agentic use-cases run locally, including Nvidia's own Nemotron models. Huang stated during the company's keynote that Adobe will support RTX Spark, and you will be able to use Adobe's MCP server with your local agent for productivity workloads.

Jeff Fisher, senior vice president of personal computing at Nvidia, was understandably very pleased with the collaboration:

NVIDIA and Microsoft share a vision that agents are the future of personal computing. RTX Spark combines NVIDIA's full technology stack with Microsoft Windows and is purpose-built for creators, gamers and AI developers in the personal AI era.

Credit: Nvidia / YouTube / Screenshot

As well, Jensen shared details of upcoming hardware. There's a DGX workstation built for Windows, packing 768GB of memory, an MSI-based mini PC, and the Microsoft Surface Laptop Ultra. As well, we're already seeing this chip appear in devices from Microsoft, Asus, Dell, HP, and Lenovo, meaning we'll soon have this mighty hardware in our hands.

Microsoft's Surface Laptop Ultra is the most powerful Surface device to date, debuting RTX Spark to bring high-performance processing in a luxurious package.

👁 Nvidia founder and CEO Jensen Huang
Microsoft’s Nvidia RTX Spark-powered Surface Laptop Ultra will push Windows on Arm further than ever

The tech giant says that the Surface Laptop Ultra's RTX Spark chip has been optimized for Windows 11 with developer and creator workloads in mind.