Can I Run / Nemotron 3 Ultra / on NVIDIA DGX Station (Blackwell Ultra)

Can I Run Nemotron 3 Ultra on a NVIDIA DGX Station (Blackwell Ultra)?

Yes

Runs at Q8_0 — near-lossless quality.

Model size
550B
GPU memory
784GB
Smallest quant
Q4_K_M
Best fit
Q8_0

4 quantizations fit your 784GB

QuantMin VRAMRecommendedFile sizeHeadroom
Q8_0BEST585.4 GB586.9 GB584.4 GB+198.6 GB
Q6_K454.1 GB455.6 GB453.1 GB+329.9 GB
Q5_K_M391.5 GB393.0 GB390.5 GB+392.5 GB
Q4_K_M334.4 GB335.9 GB333.4 GB+449.6 GB

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Full model details
Nemotron 3 Ultra

All quant variants, benchmark scores, and use-case tags.

Best models for this GPU
NVIDIA DGX Station (Blackwell Ultra)

Top-ranked open-source models that fit in 784GB.

FAQ

Can the NVIDIA DGX Station (Blackwell Ultra) run Nemotron 3 Ultra?

Yes. The NVIDIA DGX Station (Blackwell Ultra)'s 784GB of unified memory is enough to run Nemotron 3 Ultra at Q8_0 quantization (585.4GB required).

What's the best quantization to use?

Q8_0 is the highest-precision quantization that fits in your 784GB. It uses about 585.4GB of memory and 586.9GB recommended for comfortable inference.

What if I need more headroom for context length?

KV cache memory grows with context length. The numbers above assume a baseline 2K-4K context. For long-context use (32K+), add another 2-6GB depending on the model architecture.