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text model · Qwen3 · Windows

Can I run Qwen3 8B on 32GB RAM Laptop (CPU/iGPU only)?

Compatibility verdict VRAM threshold engine
Yes, it runsusable speed

Yes. Qwen3 8B runs on 32GB RAM Laptop (CPU/iGPU only) at Q4_K_M (~6.5 GB of ~28 GB usable).

Needs ~6.5 GB Device usable ~28 GB

Runs at Q4_K_M using ~6.5 GB of ~28 GB usable. You have room for FP16 for higher quality.

Q4_K_M needed
~6.5 GB
Usable on device
~28 GB
Device memory
32 GB
Best quant
Q4_K_M

Run it

Install commands Windows

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

Ollama
$ ollama run qwen3:8b
llama.cpp
$ llama-cli -hf Qwen/Qwen3-8B-GGUF:Q4_K_M
LM Studio
$ lms get Qwen/Qwen3-8B-GGUF

AMD GPUs run via Vulkan/ROCm at roughly half CUDA throughput. NVIDIA is the smooth path on Windows.

Model Qwen3
Parameters
8B
Q4_K_M size
5.03 GB
Q8_0 size
8.71 GB
Context
32k
Ollama tag
qwen3:8b
Full Qwen3 8B requirements →
Device Windows
Memory
32 GB ram
Usable for weights
~28 GB
Best runtime
Ollama (llama.cpp backend)
Best models for 32GB RAM Laptop (CPU/iGPU only) →

You could also run

Run Qwen3 8B on other hardware

FAQ

Can 32GB RAM Laptop (CPU/iGPU only) run Qwen3 8B?

Yes. Qwen3 8B runs on 32GB RAM Laptop (CPU/iGPU only) at Q4_K_M (~6.5 GB of ~28 GB usable).

How much memory does Qwen3 8B need?

32GB RAM Laptop (CPU/iGPU only) has room to spare. At Q4_K_M the weights are ~5.03 GB; with KV cache and runtime overhead, budget ~6.5 GB at a 4k context.

What is the best tool to run Qwen3 8B 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.

Sources

Memory figures are estimates. See methodology.