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text model · mistral · macOS

Can I run Mistral Small 3 24B on Apple M3 Ultra (256GB)?

Compatibility verdict VRAM threshold engine
Yes, it runsGPU accelerated

Yes. Mistral Small 3 24B runs on Apple M3 Ultra (256GB) at Q4_K_M (~16.3 GB of ~192 GB usable).

Needs ~16.3 GB Device usable ~192 GB

Runs at Q4_K_M using ~16.3 GB of ~192 GB usable. You have room for FP16 for higher quality.

Q4_K_M needed
~16.3 GB
Usable on device
~192 GB
Device memory
256 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 mistral-small3.2:24b
llama.cpp
$ llama-cli -hf bartowski/mistralai_Mistral-Small-3.2-24B-Instruct-2506-GGUF:Q4_K_M
LM Studio
$ lms get bartowski/mistralai_Mistral-Small-3.2-24B-Instruct-2506-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 mistral
Parameters
24B
Q4_K_M size
14.33 GB
Q8_0 size
25.05 GB
Context
128k
Ollama tag
mistral-small3.2:24b
Full Mistral Small 3 24B requirements →
Device macOS
Memory
256 GB unified
Usable for weights
~192 GB
Best runtime
MLX direct / Ollama (MLX backend)
Best models for Apple M3 Ultra (256GB) →

You could also run

Run Mistral Small 3 24B on other hardware

FAQ

Can Apple M3 Ultra (256GB) run Mistral Small 3 24B?

Yes. Mistral Small 3 24B runs on Apple M3 Ultra (256GB) at Q4_K_M (~16.3 GB of ~192 GB usable).

How much memory does Mistral Small 3 24B need?

Apple M3 Ultra (256GB) has room to spare. At Q4_K_M the weights are ~14.33 GB; with KV cache and runtime overhead, budget ~16.3 GB at a 4k context.

What is the best tool to run Mistral Small 3 24B 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.