DeepSeek R1 Distill Qwen 32B (Q6_K) — 23.4 GBon NVIDIA RTX 4090

Q6_K NVIDIA RTX 4090

Overview

DeepSeek R1 Distill Qwen 32B is a 32.76B parameter dense language model by DeepSeek, with code, multilingual, thinking, tool-calls capabilities. It supports a context window of up to 131,072 tokens.

DeepSeek R1 Distill Qwen 32B is a 32.76-billion-parameter dense transformer from DeepSeek, distilled from the larger R1 reasoning model into a Qwen-based architecture. It excels at chain-of-thought reasoning, code generation, and multilingual tasks with built-in thinking capabilities. Compared to standard 30B-class instruct models, it provides stronger logical and mathematical reasoning. The model supports nine languages and a 128K context window, making it suitable for developers and researchers who need reasoning-focused inference on mid-range GPU setups.

At Q6_K quantization (high quality tier), the model weighs 25.04 GB. This exceeds the 24 GB of VRAM on NVIDIA RTX 4090. Inference is still possible via CPU offload or memory-mapped loading from disk, but expect significantly reduced performance.

The NVIDIA GeForce RTX 4090 is a consumer GPU with 24 GB of GDDR6X VRAM and 1008 GB/s memory bandwidth. It delivers 82.6 FP16 TFLOPS, making it one of the fastest consumer cards for local LLM inference. It handles quantized models up to 20B parameters comfortably. Ideal for home lab builders and developers who want high-throughput inference without datacenter hardware.

Hardware Requirements

Model size	25.04 GB
VRAM available	24 GB
VRAM used	23.4 GB
Min RAM required	3.1 GB
GPU layers	56 / 64
Context size	1,607
Backend	cuda13
Flash attention	Yes

Performance Notes

Reduced performance

8 of 64 layers run on CPU. Your system needs at least 3.1 GB RAM. If system RAM is insufficient, data will be read from disk on demand, with significant performance impact.

Shorter conversations

Context size has been reduced due to memory constraints. This may affect the model's ability to handle long conversations.

Deploy

Server Local

Prerequisites

Ensure your GPU nodes are prepared with the NVIDIA container toolkit:

ansible-playbook prositronic.infra.nvidia_container_toolkit

Command

helmfile --state-values-file <(curl -s https://www.prositronic.eu/values/deepseek-r1-distill-qwen-32b/q6_k/nvidia-rtx4090.yaml) apply

Generated values.yaml

/values/deepseek-r1-distill-qwen-32b/q6_k/nvidia-rtx4090.yaml

Loading values…

Install llama.cpp

Install llama.cpp from the official build instructions for your platform and backend.

Download Model

curl -L -o deepseek-r1-distill-qwen-32b.gguf "https://huggingface.co/unsloth/DeepSeek-R1-Distill-Qwen-32B-GGUF/resolve/main/DeepSeek-R1-Distill-Qwen-32B-Q6_K.gguf"

Start Server

llama-server \
  -m deepseek-r1-distill-qwen-32b.gguf \
  --n-gpu-layers 56 \
  --ctx-size 1607 \
  --flash-attn

Verify

curl http://localhost:8080/health

Explore

• Configure a deployment
• Browse models
• Browse hardware

Other quantizations

• DeepSeek R1 Distill Qwen 32B (FP16)
• DeepSeek R1 Distill Qwen 32B (Q8_0)
• DeepSeek R1 Distill Qwen 32B (Q5_K_M)

Other hardware

• DeepSeek R1 Distill Qwen 32B on CPU Only
• DeepSeek R1 Distill Qwen 32B on NVIDIA A100 80GB
• DeepSeek R1 Distill Qwen 32B on NVIDIA H100

Frequently Asked Questions

How much VRAM does DeepSeek R1 Distill Qwen 32B (Q6_K) need?

The Q6_K quantization of DeepSeek R1 Distill Qwen 32B requires 25.04 GB. 56 of 64 layers fit in the 24 GB of VRAM on NVIDIA RTX 4090; remaining layers are offloaded to CPU.

Can I run DeepSeek R1 Distill Qwen 32B on NVIDIA RTX 4090?

Yes, with reduced performance. NVIDIA RTX 4090 can run DeepSeek R1 Distill Qwen 32B (Q6_K), but only 56 of 64 layers fit in VRAM. The rest are offloaded to CPU.

What is quantization?

Quantization reduces a model's numerical precision from its original floating-point format to a more compact representation. This shrinks the file size and VRAM footprint, making it possible to run large models on consumer hardware. The trade-off is a small reduction in output quality. Q6_K compresses DeepSeek R1 Distill Qwen 32B from its original size down to 25.04 GB.

What quantization should I choose for DeepSeek R1 Distill Qwen 32B?

Q6_K is a high-quality quantization. Higher-quality quants (Q8, Q6) preserve more model accuracy but need more VRAM. Lower quants (Q4, Q3, Q2) reduce VRAM usage at the cost of some quality. Choose based on your available hardware and quality requirements.

What is flash attention and why is it enabled?

Flash attention is a memory-efficient algorithm that speeds up the attention mechanism in transformer models. It reduces VRAM usage during inference by avoiding the materialisation of the full attention matrix. For DeepSeek R1 Distill Qwen 32B on NVIDIA RTX 4090, flash attention is enabled to maximise context length and throughput within the available 24 GB of VRAM.

Why are some layers offloaded to CPU?

NVIDIA RTX 4090 has 24 GB of VRAM, but DeepSeek R1 Distill Qwen 32B (Q6_K) requires approximately 25.04 GB. Only 56 of 64 layers fit in VRAM; the remaining layers run on CPU, which is slower but still functional.

How do I run DeepSeek R1 Distill Qwen 32B (Q6_K) with Ollama?

Run ollama run deepseek-r1:32b-qwen-distill-q6_k to start DeepSeek R1 Distill Qwen 32B (Q6_K). Ollama handles downloading the model weights automatically on first run.

Last updated: March 5, 2026