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HomeCan I run it?Llama 3.2 3BLlama 3.2 3B on a Mac mini 16GB

Yes. Llama 3.2 3B at FP16 needs about 8.4 GB, and the Mac mini M6 16GB has 12.0 GB usable at a ~4k context.

Can I run Llama 3.2 3B on a Mac mini 16GB?

Llama 3.2 3B at FP16 needs about 8.4 GB, and the Mac mini M6 16GB has 12.0 GB usable. That figure is 16 GB of unified memory on the spec sheet, of which 12.0 GB is usable for weights and cache, at 153 GB/s memory bandwidth. A tiny Meta Llama, aimed at phones and low-VRAM cards. Quality is limited; it is the model you pick when memory is tight. These are estimates from our formula, not measured benchmarks.

Quant that fits
FP16 Fits with headroom
Memory needed
8.4 GB at FP16, ~4k context
Usable unified memory
12.0 GB of 16 GB unified memory
Est. tokens/sec
11–19 estimate

Llama-3.2-3B-Instruct · Mac mini M6 16GB · Everything this machine runs · Q4 vs Q8 vs FP16

Memory at each quant

QuantNeed vs 12.0 GBVerdict
Q4_K_M3.2 GBQ4Fits
Q8_04.9 GBQ8Fits
FP168.4 GBFP16Fits

Estimated tokens per second

Estimate: 11–19 tokens/sec at FP16. This is a bandwidth-derived range, not a bench. Efficiency is a 45–80% unified-memory band from How we calculate.

Context headroom

At FP16, this machine has headroom out to about 32k tokens under our KV estimate. Longer chats need more memory for the cache. Figures assume an FP16 KV cache.

Context headroom for Llama 3.2 3B on a Mac mini 16GB at FP16
ContextKV cache (FP16)Total at FP16Verdict
4k0.5 GB8.4 GBFits
8k0.9 GB8.9 GBFits
16k1.9 GB9.8 GBFits
32k3.8 GB11.7 GBTight
64k7.5 GB15.4 GBWon’t fit
128k15.0 GB23.0 GBWon’t fit

From the model’s config. Try other sizes in the VRAM calculator or see the context length guide.

What to do instead

Other hardware for Llama 3.2 3B

Other models on a Mac mini 16GB

Quick answers

Can I run Llama 3.2 3B on a Mac mini 16GB?
Yes. Llama 3.2 3B at FP16 needs about 8.4 GB, and the Mac mini M6 16GB has 12.0 GB usable.
How much VRAM does Llama 3.2 3B need?
About 3.2 GB at Q4_K_M, 4.9 GB at Q8_0 and 8.4 GB at FP16, estimated for a ~4k context.
How fast is Llama 3.2 3B on a Mac mini 16GB?
Our estimate is 11–19 tokens per second at FP16. It is not a measured benchmark.
What context length can I use?
At FP16, our KV estimate supports up to about 32k tokens before the cache pushes the total over usable memory.

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