Microsoft’s powerful RTX Spark mini PC will be sold to consumers

Ignore the name — you’ll be able to buy Microsoft’s Surface RTX Spark Dev Box as a consumer, Microsoft executives confirmed this week at its Build conference.

In an interview with my colleague Alaina Yee, Andrew Hill, corporate vice president of Surface for Microsoft, confirmed that consumers will be able to buy the Surface RTX Spark Dev Box, the mini PC with Nvidia’s latest RTX Spark chip inside. “We will sell this to consumers for sure,” Hill said.

Though the two devices share the same underlying chip architecture, Microsoft seems to be positioning the Surface Laptop Ultra as more of a traditional productivity device and the RTX Spark Dev Box as a performance-oriented device primarily for developers. Microsoft officials suggested that, at least for now, Surface Laptop Ultra buyers should have a choice of configurations, while the RTX Spark Dev Box should have a fixed configuration of 128GB of shared memory, split between the CPU and GPU.

All of the devices will be available sometime in the fall, Microsoft said, though prices haven’t been disclosed. “Surface RTX Spark Dev Box will be available later this year in the U.S. exclusively on Microsoft.com,” Microsoft said. Sorry, Amazon.

The RTX Spark Dev Box was also designed to radiate heat throughout its entire aluminum chassis, with a 100-watt thermal envelope that exceeds that of the Surface Laptop Ultra — theoretically allowing for more performance. It contains a “custom-tuned Windows 11 Pro configuration that is fully loaded at the start,” according to Microsoft’s own live blog feed from its Build event. “That means WSL2 with native GPU passthrough and full CUDA support, alongside your favorite pre-installed tools like Visual Studio Code and GitHub Copilot.”

That would imply that consumers won’t necessarily take advantage of all of the features that the Dev Box will have to offer. But Hill also indicated that more and more people were embracing what AI could do for them, expanding the definition of a “consumer.”

“I’m kind of excited in where we’re computing is at the moment,” Hill said. “The nature of what people are doing with computers is changing, the types of work that people can do is changing, with, you know, the ability for people to leverage agents and do things differently is changing, essentially, what people do — and essentially the performance levels that they may need to be able to do the tasks that have now become enabled to them. So we’re kind of excited to see how people will take advantage of that.”

Alaina Yee / Foundry

Early on, Microsoft wholeheartedly embraced the concept of the NPU, as brought to life by Qualcomm’s first chip for Copilot+ PCs, the Snapdragon X Elite, and AI-specific tasks like Windows Studio Effects. But as PCWorld pointed out early on, the GPU was a much more powerful AI tool. Both the Ultra and the Dev Box appear to be an endorsement of that vision, even as other teams within Microsoft continue pushing hard to make the company’s cloud-based Copilot AI the thrust of the organization. Meanwhile, we’re also hearing more talk of “quieting” the operating system and reducing distraction.

The point, however, is that now Microsoft seems to be embracing a purely heterogenous vision, simply assigning tasks to the most capable chips.

“NPUs essentially are an accelerator for AI workloads,” Hill said. “AI workloads also run on GPUs, and there’s different types of models that will be tuned to work better in different places, and they’re both super useful.”

“When you start to take advantage of using agents to do work, you start to learn what models are capable, you start to learn the differences between what is available in the cloud, what is available locally,” Hill added. “There’s a set of people who get curious about what that means, and that opens up… some experimentation for how they think about and what they can do with computers locally and in the cloud.”

Microsoft certainly won’t be the only vendor selling RTX Spark laptops and desktops; a who’s who of the PC industry plans to follow suit. But for a company with Windows, Surface, several frontier AI models, and ongoing AI applications under its belt, the Surface RTX Spark Dev Box is positioning itself at the center of the conversation. Even if, you know, you’re not really a developer.