Microsoft Launches Surface Laptop Ultra With RTX Spark AI PCs

Microsoft and Nvidia introduced the Surface Laptop Ultra and RTX Spark-powered Windows PCs at a San Francisco event, unveiling devices designed to run AI agents and large models locally instead of relying only on cloud services. According to Nvidia, the RTX Spark platform combines a Blackwell RTX GPU with up to 6,144 cores, a Grace CPU with up to 20 cores, up to 128GB of unified memory, and up to one petaflop of FP4 AI performance. The Surface Laptop Ultra starts at $2,599 and will be available on October 16, while the Surface RTX Spark Dev Box is expected in November starting at $5,999, according to details shared by Microsoft and Nvidia.

Microsoft CEO Satya Nadella and Nvidia CEO Jensen Huang presented the companies' broader plan for Windows-based AI computing during the event.

"If you look at the entire journey of our company, Windows was at the core of it," said Jensen Huang, founder and CEO of NVIDIA. Huang linked Nvidia's history with Windows to the company's current push for AI agents on personal computers.

"The personal computer is the ultimate tool, it’s my ultimate tool, and for a whole generation of people, it’s our ultimate tool," said Jensen Huang, founder and CEO of NVIDIA. "What happens in the era of agents, when the agent is on your computer? It is now your personal assistant," said Jensen Huang, founder and CEO of NVIDIA.

Nadella highlighted the long-term collaboration between Microsoft and Nvidia as both companies move toward agent-based computing. "The thing that I really give Jensen all the credit for, quite frankly, is that consistency of vision of what this can be—not today, not tomorrow, but as a secular trend," said Satya Nadella, CEO of Microsoft. Microsoft Windows and Devices executive Pavan Davuluri outlined security features for AI agents, including Microsoft Execution Containers, which allow agents to operate under operating system controls.

"We are building these primitives directly into Windows, so agents can be secured, observed and governed," said Pavan Davuluri, EVP of Windows and Devices at Microsoft.

"With MXC, Microsoft Security, and Agent 365, we’re unlocking the full potential of agents on Windows," said Pavan Davuluri, EVP of Windows and Devices at Microsoft. Nadella said Windows needs stronger foundations for AI agents, while Huang described the development as a major shift for enterprise computing. "We needed to make the desktop the most secure place for agents to execute," said Satya Nadella, CEO of Microsoft.

"What Satya just said is going to be the foundation of the next generation of IT as we know it," said Jensen Huang, founder and CEO of NVIDIA.

"Just as Windows and DirectX revolutionized how applications were built, MXC is going to revolutionize how agents are built and deployed," said Jensen Huang, founder and CEO of NVIDIA. Davuluri said the Surface Laptop Ultra was built around Nvidia RTX Spark technology to support advanced local AI workloads.

"We built Surface Laptop Ultra around NVIDIA RTX Spark. With up to 128 gigs of unified memory and up to a petaflop of AI compute, you can run models on this laptop that simply don’t fit on a traditional machine," said Pavan Davuluri, EVP of Windows and Devices at Microsoft. Microsoft also previewed Nvidia DGX Station for Windows, a desktop AI system aimed at enterprise developers and researchers running large models locally.

"This unlocks the power to run frontier-class models locally," said Pavan Davuluri, EVP of Windows and Devices at Microsoft. Nadella described the company's hybrid intelligence approach as Microsoft continues expanding AI capabilities across Windows devices. "I think today is the day we’ll start talking and thinking about the frontier ecosystem taking maybe slightly different contours," said Satya Nadella, CEO of Microsoft.

Microsoft said Windows updates will support a future where AI agents can work across local and cloud environments.

"This is the future we’re building: agents that can work securely on your behalf, intelligence that moves seamlessly between local and cloud, and devices that become more capable than ever before," said Pavan Davuluri, EVP of Windows and Devices at Microsoft.