NVIDIA DGX Spark GB10 Grace Blackwell Desktop AI Supercomputer with 128GB Unified Memory 4TB NVME with self encryption 8+ USB adjust the height adjust the height 40 BTU hr (110V 60 Hz) (with 250 W PD connected) Switching Capacity 56 Gbps Packet Forwarding Rate 41 4 with LE Audio output HDMI multichannel audio output Power Supply 240 W GB10 TDP 140 W Display Connectors 1x HDMI 2 } Architecture NVIDIA Grace Blackwell GPU NVIDIA Blackwell Architecture CPU 20 core Arm (10 Cortex X925 + 10 Cortex A725) CUDA Cores NVIDIA Blackwell Generation Tensor Cores 5th Generation RT Cores 4th Generation Tensor Performance 1 PFLOP System Memory 128 GB LPDDR5x coherent unified system memory Memory Interface 256 bit Memory Bandwidth Up to 273 GB s Storage 4 TB NVMe M