NVIDIA HGX Rubin NVL8
Eight Rubin SXM on an HGX baseboard, listed by NVIDIA alongside HGX B300 and HGX B200. NVIDIA publishes NVFP4 twice and the two are different workloads, not a sparse/dense pair: inference 400 PFLOPS sparse, training 280 PFLOPS dense. FP8/FP6 training is 140 PFLOPS dense. System power is not published for the baseboard; the 24 kW figure on DGX Rubin NVL8 is the full chassis including CPUs. NVIDIA marks the specification preliminary.
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System Details
GPU Configuration
System Specifications
Precision Performance Breakdown
| Precision | System Performance | Per GPU | Efficiency |
|---|---|---|---|
| 140.000 PFLOPS | 17500.0 TFLOPS | — | |
| 280.000 PFLOPS | 35000.0 TFLOPS | — | |
| FP6 | 140.000 PFLOPS | 17500.0 TFLOPS | — |
All figures are dense. Vendors commonly headline the number, which is twice the dense one.
Powered by NVIDIA Rubin
This system utilizes 8 × NVIDIA Rubin SXM GPUs, each delivering exceptional performance for AI and HPC workloads.
Per GPU TDP
—
Per GPU Memory
288 GB
Process Node
—
Architecture
Rubin
Documentation & Resources
Official Datasheet
NVIDIA HGX Rubin NVL8 technical specifications
workstation-datasheet-dgx-spark-gtc25-spring-nvidia-us-3716899-web.pdf
NVIDIA • 2025-10-16
NVIDIA DGX Documentation
System guides, deployment resources
Typical Use Cases
The NVIDIA HGX Rubin NVL8 runs 8× Rubin GPUs over NVLink 6 Switch, 28.8 TB/s total, delivering 140 PFLOPS FP8 dense.