Microsoft announced the Surface RTX Spark Dev Box at its Build conference, designed specifically for sustained AI workloads such as long-running training jobs and agentic AI pipelines. The device features NVIDIA’s RTX Spark chip and can sustain a 100W thermal envelope, allowing it to manage higher heat levels compared to typical laptops.
The Surface RTX Spark Dev Box offers up to 128GB of unified memory and delivers a petaflop of AI computing power. It will also include NVIDIA’s RTX Blackwell GPU, providing gaming performance akin to the RTX 5070 laptop version.
This product positions Microsoft against AMD’s Ryzen AI Halo PC and NVIDIA’s DGX Spark mini PC, both priced at $3,999. Microsoft has yet to announce pricing for the Surface RTX Spark Dev Box.
The Dev Box is expected to be available later this year through Microsoft.com and will not be sold at physical retail locations like Best Buy.





