# Can I run Llama 3.1 8B on a Mac mini 16GB? | What Can I Run?

> Yes, but it is tight. Llama 3.1 8B at Q8_0 needs about 10.8 GB; Mac mini 16GB has 12.0 GB usable. Estimated tokens/sec and context headroom.

Source: https://whatcanirunai.vercel.app/can-i-run/llama-3.1-8b-instruct/mac-mini-m6-16/

[Home](https://whatcanirunai.vercel.app/) / [Can I run it?](https://whatcanirunai.vercel.app/can-i-run/) / [Llama 3.1 8B](https://whatcanirunai.vercel.app/models/llama-3.1-8b-instruct/) / Llama 3.1 8B on a Mac mini 16GB

**Yes, but it is tight.** Llama 3.1 8B at Q8\_0 needs about 10.8 GB, and the Mac mini M6 16GB has 12.0 GB usable at a \~4k context.

# Can I run Llama 3.1 8B on a Mac mini 16GB?

Llama 3.1 8B at Q8\_0 needs about 10.8 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. Meta’s widely used 8B instruct model, the default small local chat model for a few years running. These are estimates from [our formula](https://whatcanirunai.vercel.app/method/), not measured benchmarks.

Quant that fits

Q8\_0 Fits, short context only

Memory needed

10.8 GB at Q8\_0, \~4k context

Usable unified memory

12.0 GB of 16 GB unified memory

Est. tokens/sec

8–14 estimate

[Llama-3.1-8B-Instruct](https://whatcanirunai.vercel.app/models/llama-3.1-8b-instruct/) · [Mac mini M6 16GB](https://whatcanirunai.vercel.app/hardware/mac-mini-m6-16/) · [Everything this machine runs](https://whatcanirunai.vercel.app/what-can-i-run/mac-mini-m6-16/) · [Q4 vs Q8 vs FP16](https://whatcanirunai.vercel.app/quantization/)

## Memory at each quant

| Quant    | Need vs 12.0 GB | Verdict       |
| -------- | --------------- | ------------- |
| Q4\_K\_M | 6.6 GB          | Q4Fits        |
| Q8\_0    | 10.8 GB         | Q8Tight       |
| FP16     | 19.5 GB         | FP16Won’t fit |

## Estimated tokens per second

Estimate: **8–14 tokens/sec** at Q8\_0\. This is a bandwidth-derived range, not a bench. Efficiency is a 45–80% unified-memory band from [How we calculate](https://whatcanirunai.vercel.app/method/).

## Context headroom

At Q8\_0, this machine has headroom out to about **8k tokens** under our KV estimate. Longer chats need more memory for the cache. Figures assume an FP16 KV cache.

__Context headroom for Llama 3.1 8B on a Mac mini 16GB at Q8\_0__
| Context | KV cache (FP16) | Total at Q8\_0 | Verdict   |
| ------- | --------------- | -------------- | --------- |
| 4k      | 0.5 GB          | 10.8 GB        | Tight     |
| 8k      | 1.1 GB          | 11.3 GB        | Tight     |
| 16k     | 2.1 GB          | 12.4 GB        | Won’t fit |
| 32k     | 4.3 GB          | 14.6 GB        | Won’t fit |
| 64k     | 8.6 GB          | 18.9 GB        | Won’t fit |
| 128k    | 17.2 GB         | 27.5 GB        | Won’t fit |

From the model’s config. Try other sizes in the [VRAM calculator](https://whatcanirunai.vercel.app/vram-calculator/) or see the [context length guide](https://whatcanirunai.vercel.app/context-length/).

## What to do instead

* Run [R1 Distill 7B](https://whatcanirunai.vercel.app/can-i-run/deepseek-r1-distill-qwen-7b/mac-mini-m6-16/) instead (6.3 GB at Q4). It is a different model, not a drop-in, but it does fit this machine.
* Keep context short, close other GPU work, and avoid a higher quant. The [VRAM calculator](https://whatcanirunai.vercel.app/vram-calculator/) shows how the KV cache grows.
* See the [best GPU for this model family](https://whatcanirunai.vercel.app/best-gpu-for/llama/) and the [Llama-3.1-8B-Instruct model page](https://whatcanirunai.vercel.app/models/llama-3.1-8b-instruct/).

## Other hardware for Llama 3.1 8B

* [Llama 3.1 8B on an RTX 3060 12GB](https://whatcanirunai.vercel.app/can-i-run/llama-3.1-8b-instruct/rtx-3060-12gb/)Tight
* [Llama 3.1 8B on an RTX 3070 Ti](https://whatcanirunai.vercel.app/can-i-run/llama-3.1-8b-instruct/rtx-3070-ti/)Fits
* [Llama 3.1 8B on an RTX 3080](https://whatcanirunai.vercel.app/can-i-run/llama-3.1-8b-instruct/rtx-3080-10gb/)Fits
* [Llama 3.1 8B on an RTX 4060 Ti 16GB](https://whatcanirunai.vercel.app/can-i-run/llama-3.1-8b-instruct/rtx-4060-ti-16gb/)Fits
* [Llama 3.1 8B on an RTX 4070 Ti Super](https://whatcanirunai.vercel.app/can-i-run/llama-3.1-8b-instruct/rtx-4070-ti-super/)Fits
* [Llama 3.1 8B on an RTX 4090](https://whatcanirunai.vercel.app/can-i-run/llama-3.1-8b-instruct/rtx-4090/)Fits

## Other models on a Mac mini 16GB

* [Qwen3-32B on a Mac mini 16GB](https://whatcanirunai.vercel.app/can-i-run/qwen3-32b/mac-mini-m6-16/)Won’t fit
* [Qwen3-30B-A3B on a Mac mini 16GB](https://whatcanirunai.vercel.app/can-i-run/qwen3-30b-a3b/mac-mini-m6-16/)Won’t fit
* [Qwen3.8-27B on a Mac mini 16GB](https://whatcanirunai.vercel.app/can-i-run/qwen3.8-27b/mac-mini-m6-16/)Won’t fit
* [Gemma 3 27B on a Mac mini 16GB](https://whatcanirunai.vercel.app/can-i-run/gemma-3-27b-it/mac-mini-m6-16/)Won’t fit
* [Gemma 4 31B on a Mac mini 16GB](https://whatcanirunai.vercel.app/can-i-run/gemma-4-31b-it/mac-mini-m6-16/)Won’t fit
* [gpt-oss-20b on a Mac mini 16GB](https://whatcanirunai.vercel.app/can-i-run/gpt-oss-20b/mac-mini-m6-16/)Won’t fit

## Quick answers

Can I run Llama 3.1 8B on a Mac mini 16GB?

Yes, but it is tight. Llama 3.1 8B at Q8\_0 needs about 10.8 GB, and the Mac mini M6 16GB has 12.0 GB usable.

How much VRAM does Llama 3.1 8B need?

About 6.6 GB at Q4\_K\_M, 10.8 GB at Q8\_0 and 19.5 GB at FP16, estimated for a \~4k context.

How fast is Llama 3.1 8B on a Mac mini 16GB?

Our estimate is 8–14 tokens per second at Q8\_0\. It is not a measured benchmark.

What context length can I use?

At Q8\_0, our KV estimate supports up to about 8k tokens before the cache pushes the total over usable memory.

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Agent guide: https://whatcanirunai.vercel.app/llms.txt · JSON API: https://whatcanirunai.vercel.app/developers/