DGX Spark

DGX Spark is NVIDIA's compact desktop AI computer, built around the GB10 Grace Blackwell Superchip. GB10 pairs a 20-core Arm CPU with a Blackwell GPU, and both share 128 GB of coherent unified memory. The system measures 150 mm by 150 mm by 50.5 mm, weighs 1.2 kg and runs from a 240 W external power supply.

The GPU has 6,144 CUDA cores and fifth-generation Tensor Cores rated up to 1 petaFLOP at FP4 (4-bit floating point) precision with sparsity. The GB10 chip's thermal design power is 140 W. Its low-power LPDDR5X memory delivers 273 GB/s over a 256-bit interface. A 200 Gbps ConnectX-7 network adapter links units into clusters. NVIDIA states that one unit runs inference on models up to 200 billion parameters and fine-tunes models up to 70 billion. Two linked units reach up to 400 billion parameters, and four reach 700 billion. Partner GB10 systems include the ASUS Ascent GX10, HP ZGX Nano AI Station and Lenovo ThinkStation PGX.

Choose DGX Spark to prototype, fine-tune and test models that fit in 128 GB at a desk. Move to a workstation or server GPU when the job needs more than 273 GB/s of memory bandwidth or more than 128 GB per node.

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Last verified October 7, 2026.