Microsoft shows mini Surface PC with NVIDIA RTX Spark and 128GB memory

VideoCardz.com reports that Microsoft has shown off a compact Surface mini-PC powered by NVIDIA's RTX Spark processor with 128GB of unified memory at Computex 2026. The device, referred to as the Surface RTX Spark Dev Box, represents a new form factor for Microsoft's Surface line — a small desktop machine designed for developers and power users who need desktop-class AI and GPU performance in a footprint significantly smaller than traditional tower PCs.

According to VideoCardz.com's coverage, the mini Surface PC leverages the RTX Spark N1X chip's thermal efficiency to fit into a compact chassis without sacrificing performance. The 128GB unified memory configuration is particularly noteworthy, as it allows the device to run AI models with up to 120 billion parameters entirely in memory — a capability that until now has been limited to workstation-class hardware costing several times more. The unified memory pool, shared between the CPU and the RTX 5070-class Blackwell GPU via NVLink-C2C, eliminates the traditional bottlenecks of discrete GPU systems where data must be copied between separate CPU and GPU memory pools.

The report notes that the mini-PC form factor could open new use cases for compact desktop computing, particularly in developer workspaces, research labs, and edge AI deployments where space is at a premium but GPU-accelerated performance is essential. VideoCardz.com suggests that Microsoft may be exploring broader availability for the compact Surface PC beyond the developer program, potentially positioning it as a consumer product for users who want RTX Spark performance in a desktop form factor without the size and noise of a traditional PC tower.