Hardware Overview#
Powered by the NVIDIA Grace Blackwell architecture, DGX Spark enables developers, researchers, and data scientists to prototype, deploy, and fine-tune large AI models on their desktop. This section provides information about the hardware components and specifications.
System Overview#
The DGX Spark features:
NVIDIA Grace Blackwell architecture with integrated GPU and CPU
20-core Arm processor with high-performance cores
128 GB unified system memory
Compact desktop form factor (150mm x 150mm x 50.5mm)
Advanced connectivity including Wi-Fi 7, 10 GbE, and ConnectX-7
Support for AI models up to 200 billion parameters (or 405B for dual-Spark configuration)
Component Descriptions#
The DGX Spark includes the following components:
Component |
Specification |
---|---|
GPU |
NVIDIA Blackwell Architecture with 5th Generation Tensor Cores, 4th Generation RT Cores |
CPU |
20-core Arm processor (10 Cortex-X925 + 10 Cortex-A725) |
Memory |
128 GB LPDDR5x unified system memory, 256-bit interface, 4266 MHz, 273 GB/s bandwidth |
Storage |
1 TB or 4 TB NVMe M.2 with self-encryption |
Network |
1x RJ-45 (10 GbE), ConnectX-7 Smart NIC, Wi-Fi 7, Bluetooth 5.4 |
Connectivity |
4x USB Type-C, 1x HDMI 2.1a, HDMI multichannel audio |
Video Processing |
1x NVENC, 1x NVDEC |
Physical Specifications#
Form Factor#
Chassis Type: Small form factor (SFF)
Dimensions: 150 mm (L) x 150 mm (W) x 50.5 mm (H)
Weight: 1.2 kg (2.6 lbs)
Environmental Requirements#
Specification |
Value |
---|---|
Ideal Operating Temperature |
0°C to 35°C (32°F to 95°F) |
Operating Humidity |
10% to 90% (non-condensing) |
Operating Altitude |
Up to 3,000 meters (9,843 feet) |
Connectivity and I/O#
Rear Panel#
Power button
4x USB Type-C (one for power delivery)
1x HDMI 2.1a display connector
1x RJ-45 Ethernet connector (10 GbE)
2x QSFP Network connectors (ConnectX-7)

Performance Specifications#
Compute Performance#
AI Compute: Up to 1,000 TOPS (trillion operations per second) inference and up to 1 PFLOP (petaFLOP) at FP4 precision with sparsity
CUDA Cores: 6,144
Copy Engines: 2 (enables simultaneous data transfers to and from GPU memory, improving throughput for AI workloads)
CPU Performance: 20 cores (10 Cortex-X925 + 10 Cortex-A725)
Memory Bandwidth: 273 GB/s
Memory Channels: 16 channels (256 bit) LPDDR5X 8533
AI/ML Capabilities#
Model Support: AI models up to 200 billion parameters
Tensor Performance: 5th Generation Tensor Cores with FP4 support
Framework Support: TensorFlow, PyTorch, TRT-LLM, and other AI frameworks
Use Cases: Inference, deployment, and fine-tuning of large language models
Power and Thermal Management#
Power Requirements#
Power Supply: 240W external power supply (included)
Usage Requirement: Use of the provided 240W power supply is required for optimal performance. Using a different or lower-rated power supply may result in reduced system performance, failure to boot, or unexpected shutdowns.
Input Voltage: Standard AC power input
Thermal Management#
Cooling Solution: Integrated thermal management system
Form Factor: Compact design optimized for desktop placement
Operating Temperature: 0°C to 35°C (32°F to 95°F) Preliminary specifications