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text model · Qwen2.5 · macOS

Can I run Qwen2.5 32B on Apple M5 Max (128GB)?

Compatibility verdict VRAM threshold engine
Yes, it runsGPU accelerated

Yes. Qwen2.5 32B runs on Apple M5 Max (128GB) at Q4_K_M (~22.1 GB of ~96 GB usable).

Needs ~22.1 GB Device usable ~96 GB

Runs at Q4_K_M using ~22.1 GB of ~96 GB usable. You have room for FP16 for higher quality.

Q4_K_M needed
~22.1 GB
Usable on device
~96 GB
Device memory
128 GB
Best quant
Q4_K_M

Run it

Install commands macOS

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

Ollama
$ ollama run qwen2.5:32b
llama.cpp
$ llama-cli -hf bartowski/Qwen2.5-32B-Instruct-GGUF:Q4_K_M
LM Studio
$ lms get bartowski/Qwen2.5-32B-Instruct-GGUF

vLLM is NOT a Mac tool, it is a CUDA/Linux serving engine. Unified memory is not a fixed VRAM slice; ~70% is usable for weights.

Model Qwen2.5
Parameters
32B
Q4_K_M size
19.85 GB
Q8_0 size
34.82 GB
Context
128k
Ollama tag
qwen2.5:32b
Full Qwen2.5 32B requirements →
Device macOS
Memory
128 GB unified
Usable for weights
~96 GB
Best runtime
MLX direct / Ollama (MLX backend)
Best models for Apple M5 Max (128GB) →

You could also run

Run Qwen2.5 32B on other hardware

FAQ

Can Apple M5 Max (128GB) run Qwen2.5 32B?

Yes. Qwen2.5 32B runs on Apple M5 Max (128GB) at Q4_K_M (~22.1 GB of ~96 GB usable).

How much memory does Qwen2.5 32B need?

Apple M5 Max (128GB) has room to spare. At Q4_K_M the weights are ~19.85 GB; with KV cache and runtime overhead, budget ~22.1 GB at a 4k context.

What is the best tool to run Qwen2.5 32B on macOS?

LM Studio for a simple setup; mlx-lm for the most speed. vLLM is NOT a Mac tool, it is a CUDA/Linux serving engine. Unified memory is not a fixed VRAM slice; ~70% is usable for weights.

Sources

Memory figures are estimates. See methodology.