Nvidia’s DGX Spark has proven itself as a compact, versatile local AI engine thanks to its 128GB of RAM, fast 20-core Arm CPU, and capable Blackwell GPU. We found it equally useful for LLM inference and generative image and video workflows in our review.
But one surprise did rear its head during our testing. Despite its 3nm-class fabrication tech, Arm CPU complex, and Nvidia’s long experience with mobile power management, the DGX Spark and its GB10 SoC drew a surprising 37W or so at idle. That’s hardly…

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