DGX Spark first look: 1.2kg box with 128GB unified memory runs 200B models locally

kimmonismus · x · 2026-09-22

NVIDIA sent DGX Spark to blogger kimmonismus, who shared a first look: 15×15×5.05cm, 1.2kg, powered by the GB10 Grace Blackwell Superchip with 128GB unified CPU/GPU memory and up to 1 petaflop theoretical FP4 sparse compute. NVIDIA claims it can run models up to 200B parameters locally with quantization and fine-tune up to 70B using methods like QLoRA — enabling local fine-tuning, custom image generation, and locally running AI assistants. Hands-on demos to follow.

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