NVIDIA Rubin SXM
Overview
NVIDIA Rubin is the post-Blackwell datacenter GPU announced at GTC 2025 and shipping in late 2026. Each Rubin GPU pairs with HBM4 stacks delivering 22 TB/s bandwidth, ships on the SXM form factor, and supports 6th-gen NVLink at 3.6 TB/s per GPU. Rubin debuts NVFP4, a microscaled 4-bit format that hits 50 PFLOPS dense for inference (35 PFLOPS dense for training) and adds tensor-core-emulated SGEMM/DGEMM that lifts FP32 to 400 TFLOPS and FP64 to 200 TFLOPS. Specifications are preliminary per NVIDIA and subject to change. NVFP4 training throughput on this GPU is 35 PFLOPS (dense).
Performance
Peak theoretical throughput by precision type
Specifications
Architecture
Rubin
Form Factor
SXM
Launch Year
2026
Memory
288 GB HBM4
Bandwidth
22,000 GB/s
Interconnect
3.6 TB/s NVLink
Spec Confidence
Vendor claimed
Full Specifications
| Memory | |
|---|---|
| VRAM | 288 GB |
| Memory Type | HBM4 |
| Bandwidth | 22.0 TB/s |
| Interconnect & I/O | |
| GPU-to-GPU | NVLink |
| Interconnect Bandwidth | 3.6 TB/s |
| Power & Thermal | |
| Enterprise Features | |
| Sparsity | Yes |
| General | |
| Form Factor | SXM |
| Architecture | Rubin |
| Launch Year | 2026 |
Datasheet & Resources
Data Provenance
Every figure traced to a source
Primary Source
- Publisher
- NVIDIA
- Published
- 2025-03-18
Data Quality
- Spec confidence
- Vendor claimed
- Clock basis
- Boost
- Precisions tracked
- 11
- Normalization
- All values in TFLOPS
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Systems Using This GPU
Pre-configured systems featuring the NVIDIA Rubin
| System | GPU Count | Peak Performance | Total Power | |
|---|---|---|---|---|
NVIDIA DGX Rubin NVL8 DGX · rack · 2026 | 8x Rubin | 280.00 PFLOPS | 24.0 kW | View System |
NVIDIA HGX Rubin NVL8 HGX · baseboard · 2026 | 8x Rubin | 280.00 PFLOPS | -- | View System |
NVIDIA Vera Rubin NVL72 NVL · rack · 2026 | 72x Rubin | 2520.00 PFLOPS | -- | View System |
Inventec Artemis III Rack Artemis · rack · | 72x Rubin | -- | 228.0 kW | View System |
Ingrasys IGS-HXR200 IGS · rack · | 8x Rubin | -- | -- | View System |
Frequently Asked Questions
How many TFLOPS does the NVIDIA Rubin have?
The NVIDIA Rubin delivers 130 TFLOPS for FP32 operations, 4000 TFLOPS for FP16, and 17500 TFLOPS for FP8 precision.
What is the power consumption of the NVIDIA Rubin?
The NVIDIA Rubin has a TDP (Thermal Design Power) rating of N/A watts.
How much memory does the NVIDIA Rubin have?
The NVIDIA Rubin is equipped with 288 GB of VRAM with 22000 GB/s memory bandwidth.
What architecture is the NVIDIA Rubin based on?
The NVIDIA Rubin is based on the Rubin architecture, launched in 2026.
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