Can NVIDIA GeForce RTX 3090 Ti run Qwen 2.5 32B?

32B parameter LLM model on 24GB GDDR6X

Yes — runs at 4-bit quantization
~27-34 tok/sUsable
SpeedModerate speed, usable for interactive chat
QualityGood quality with slight degradation on complex reasoning

VRAM Requirements

Qwen 2.5 32B is a 32B parameter model. At full precision (FP16), it requires 64GB of VRAM. Your NVIDIA GeForce RTX 3090 Ti has 24GB, so you'll need to quantize it to 4-bit (Q4) to fit.

FP16 (Full Precision)64GB (need 40GB more)

Maximum quality, no quantization

Q8 (8-bit)32GB (need 8GB more)

Near-lossless, ~50% size reduction

Q4 (4-bit)20GB (4GB free)

Good quality, ~75% size reduction

Your GPU VRAM: 24GB GDDR6X at 1008 GB/s bandwidth
Recommended system RAM: 48GB DDR5 (2x GPU VRAM minimum for model overflow)

What This Means in Practice

At 4-bit quantization, Qwen 2.5 32B fits in NVIDIA GeForce RTX 3090 Ti's 24GB VRAM but with some quality trade-offs. Complex reasoning tasks and nuanced writing may show slight degradation. For casual chat, code assistance, and general queries, Q4 is perfectly usable. For critical work, consider a GPU with more VRAM to run at Q8.

How to Set It Up

Step 1: Install Ollama

curl -fsSL https://ollama.com/install.sh | sh

Ollama is the easiest way to run local LLMs. Works on Linux, macOS, and Windows.

Step 2: Download and run Qwen 2.5 32B

ollama run qwen2.5:32b:q4_K_M

This downloads the Q4_K_M quantized version (~20GB). First run takes a few minutes to download.

Step 3: Verify GPU is being used

nvidia-smi

Check that VRAM usage increases when the model loads. You should see ~20GB used.

NVIDIA GeForce RTX 3090 Ti Specs

VRAM24GB GDDR6X
Memory Bandwidth1008 GB/s
TDP450W
CUDA Cores10,752
Street Price~$1000
AI Rating8/10

About Qwen 2.5 32B

Strong reasoning in a more accessible size. Q4 fits on 24GB GPUs.

Category: LLM · Parameters: 32B · CUDA required: No (runs via llama.cpp/GGUF)