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text model · Nemotron 3 · Windows

Can I run Nemotron Cascade 2 30B-A3B on Nvidia GeForce RTX 5090 (32GB)?

Compatibility verdict VRAM threshold engine
Yes, it runs GPU accelerated

Yes. Nemotron Cascade 2 30B-A3B runs on Nvidia GeForce RTX 5090 (32GB) at Q4_K_M (~25.1 GB of ~31 GB usable).

Needs ~25.1 GB Device usable ~31 GB

Runs at Q4_K_M using ~25.1 GB of ~31 GB usable.

That figure is at a 4k context and moves about ±15% as context length changes. Nvidia GeForce RTX 5090 (32GB) leaves ~5.9 GB of headroom.

Q4_K_M needed
~25.1 GB
Usable on device
~31 GB
Device memory
32 GB
Best quant
Q4_K_M
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Which quant fits

Quant ladder vs ~31 GB usable
Q2_K
~14.7 GB
Q3_K_M
~16.8 GB
Q4_K_M
~25.1 GB
Q5_K_M
~23.5 GB
Q6_K
~26.7 GB
Q8_0
~33.4 GB
FP16
~62.1 GB
The line marks Nvidia GeForce RTX 5090 (32GB)'s ~31 GB budget; rungs past it are too large.

Run it

Install commands Windows

Pick your tool. All 3 load the same Q4_K_M weights.

Ollama
$ ollama run nemotron-cascade-2:30b
llama.cpp
$ llama-cli -hf bartowski/nvidia_Nemotron-Cascade-2-30B-A3B-GGUF:Q4_K_M
LM Studio
$ lms get bartowski/nvidia_Nemotron-Cascade-2-30B-A3B-GGUF
Model Nemotron 3
Parameters
30B (MoE, 3B active)
Q4_K_M size
23.03 GB
Q8_0 size
31.28 GB
Context
256k
Ollama tag
nemotron-cascade-2:30b
Full Nemotron Cascade 2 30B-A3B requirements →
Device Windows
Memory
32 GB vram
Usable for weights
~31 GB
Power draw
~575 W
Best runtime
vLLM (Linux) / Ollama (CUDA)
Best models for Nvidia GeForce RTX 5090 (32GB) →

You could also run

Run Nemotron Cascade 2 30B-A3B on other hardware

FAQ

Can Nvidia GeForce RTX 5090 (32GB) run Nemotron Cascade 2 30B-A3B?

Yes. Nemotron Cascade 2 30B-A3B runs on Nvidia GeForce RTX 5090 (32GB) at Q4_K_M (~25.1 GB of ~31 GB usable).

How much memory does Nemotron Cascade 2 30B-A3B need?

Nvidia GeForce RTX 5090 (32GB) has room to spare. At Q4_K_M the weights are ~23.03 GB; with KV cache and runtime overhead, budget ~25.1 GB at a 4k context. It is a Mixture-of-Experts model (30B total / 3B active), so all experts must stay in memory; memory tracks total params, not active params.

What is the best tool to run Nemotron Cascade 2 30B-A3B on Windows?

LM Studio for a simple setup; Ollama (CUDA) for the most speed. AMD GPUs run via Vulkan/ROCm at roughly half CUDA throughput. NVIDIA is the smooth path on Windows.

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Sources

Weights are measured from GGUF files; KV cache and overhead are computed, so totals can vary ~15% with context and runtime. Any tok/s is a bandwidth estimate. See methodology.