{"id":"nvidia-dgx-spark-128","status":"catalog","label":"NVIDIA DGX Spark 128GB","vendor":"NVIDIA","family":"nvidia-gb10","stack":"cuda","vram_mib":131072,"bandwidth_gbs":273,"tdp_w":140,"aliases":["DGX Spark","Spark","GB10","Grace Blackwell","Project DIGITS"],"refuse":["high-bandwidth-70b-interactive"],"wiki":"Desktop GB10 Grace Blackwell. 128GB LPDDR5x unified, 256-bit, 273 GB/s. SoC TDP 140W, 240W brick. Capacity without 5090-class tok/s. NVIDIA’s own small cluster: two Sparks over 200GbE ConnectX-7. 256GB unified, still 273 GB/s each.","sources":[{"title":"NVIDIA DGX Spark hardware overview","url":"https://docs.nvidia.com/dgx/dgx-spark/hardware.html"}]}