Microsoft reveals new Mac Studio rival with Nvidia RTX Spark and 128 GB RAM

Notebookcheck reports that Microsoft has revealed a new compact desktop powered by NVIDIA's RTX Spark processor with up to 128GB of unified RAM, positioning it as a direct competitor to Apple's Mac Studio for AI development, content creation, and professional workloads. The device, which appears to be the Surface RTX Spark Dev Box shown at Computex 2026, packs desktop-class GPU performance — including 6,144 CUDA cores and full ray tracing support — into a small-form-factor chassis significantly smaller than traditional tower PCs.

According to Notebookcheck's analysis, the compact desktop's Mac Studio-like positioning is significant because it targets a market segment where Apple has enjoyed strong success with creative professionals and developers. By combining RTX Spark's integrated RTX 5070-class Blackwell GPU with 128GB of unified memory accessible to both CPU and GPU via NVLink-C2C at 600 GB/s, Microsoft's new desktop eliminates the memory bottlenecks that constrain AI model development and creative rendering on systems with discrete GPUs and separate CPU memory pools.

The report notes that the compact desktop form factor enables use cases that traditional tower PCs cannot easily serve — including placement in developer workspaces, research labs, and edge AI deployments where space and noise are at a premium. With the RTX Spark platform's support for running AI models with up to 120 billion parameters locally, the compact Surface desktop offers workstation-class AI performance in a desktop footprint that rivals the Mac Studio's sleek industrial design. Microsoft has not yet announced pricing or general availability beyond the developer program.