# Can I run Qwen3-8B on an RTX 3060 12GB? | What Can I Run AI?

> Yes, but it is tight. Qwen3-8B at Q8_0 needs about 11.0 GB; RTX 3060 12GB has 12.0 GB usable. Estimated tokens/sec and context headroom.

Source: https://whatcanirunai.vercel.app/can-i-run/qwen3-8b/rtx-3060-12gb/

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**Yes, but it is tight.** Qwen3-8B at Q8\_0 needs about 11.0 GB, and the GeForce RTX 3060 12GB has 12.0 GB usable at a \~4k context.

# Can I run Qwen3-8B on an RTX 3060 12GB?

Qwen3-8B at Q8\_0 needs about 11.0 GB, and the GeForce RTX 3060 12GB has 12.0 GB usable. That figure is 12 GB of VRAM on the spec sheet, of which 12.0 GB is usable for weights and cache, at 360 GB/s memory bandwidth. Alibaba’s 8B Qwen3\. A strong small dense model, and a common upgrade from older 7B–8B weights. 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

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

Usable VRAM

12.0 GB of 12 GB VRAM

Est. tokens/sec

25–35 estimate

[Qwen3-8B](https://whatcanirunai.vercel.app/models/qwen3-8b/) · [GeForce RTX 3060 12GB](https://whatcanirunai.vercel.app/hardware/rtx-3060-12gb/) · [Everything this machine runs](https://whatcanirunai.vercel.app/what-can-i-run/rtx-3060-12gb/) · [Q4 vs Q8 vs FP16](https://whatcanirunai.vercel.app/quantization/)

## Memory at each quant

| Quant    | Need vs 12.0 GB | Verdict       |
| -------- | --------------- | ------------- |
| Q4\_K\_M | 6.7 GB          | Q4Fits        |
| Q8\_0    | 11.0 GB         | Q8Tight       |
| FP16     | 19.8 GB         | FP16Won’t fit |

## Estimated tokens per second

Estimate: **25–35 tokens/sec** at Q8\_0\. This is a bandwidth-derived range, not a bench. Efficiency is a 60–85% GPU 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 Qwen3-8B on an RTX 3060 12GB at Q8\_0__
| Context | KV cache (FP16) | Total at Q8\_0 | Verdict   |
| ------- | --------------- | -------------- | --------- |
| 4k      | 0.6 GB          | 11.0 GB        | Tight     |
| 8k      | 1.2 GB          | 11.6 GB        | Tight     |
| 16k     | 2.4 GB          | 12.8 GB        | Won’t fit |
| 32k     | 4.8 GB          | 15.2 GB        | Won’t fit |
| 64k     | 9.7 GB          | 20.1 GB        | Won’t fit |
| 128k    | 19.3 GB         | 29.7 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 [Llama 3.1 8B](https://whatcanirunai.vercel.app/can-i-run/llama-3.1-8b-instruct/rtx-3060-12gb/) instead (6.6 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/qwen3/) and the [Qwen3-8B model page](https://whatcanirunai.vercel.app/models/qwen3-8b/).

## Other hardware for Qwen3-8B

* [Qwen3-8B on an RTX 3070 Ti](https://whatcanirunai.vercel.app/can-i-run/qwen3-8b/rtx-3070-ti/)Fits
* [Qwen3-8B on an RTX 3080](https://whatcanirunai.vercel.app/can-i-run/qwen3-8b/rtx-3080-10gb/)Fits
* [Qwen3-8B on an RTX 4060 Ti 16GB](https://whatcanirunai.vercel.app/can-i-run/qwen3-8b/rtx-4060-ti-16gb/)Fits
* [Qwen3-8B on an RTX 4070 Ti Super](https://whatcanirunai.vercel.app/can-i-run/qwen3-8b/rtx-4070-ti-super/)Fits
* [Qwen3-8B on an RTX 4090](https://whatcanirunai.vercel.app/can-i-run/qwen3-8b/rtx-4090/)Fits
* [Qwen3-8B on an RTX 5070 Ti](https://whatcanirunai.vercel.app/can-i-run/qwen3-8b/rtx-5070-ti/)Fits

## Other models on an RTX 3060 12GB

* [Qwen3-32B on an RTX 3060 12GB](https://whatcanirunai.vercel.app/can-i-run/qwen3-32b/rtx-3060-12gb/)Won’t fit
* [Qwen3-30B-A3B on an RTX 3060 12GB](https://whatcanirunai.vercel.app/can-i-run/qwen3-30b-a3b/rtx-3060-12gb/)Won’t fit
* [Qwen3.8-27B on an RTX 3060 12GB](https://whatcanirunai.vercel.app/can-i-run/qwen3.8-27b/rtx-3060-12gb/)Won’t fit
* [Gemma 3 27B on an RTX 3060 12GB](https://whatcanirunai.vercel.app/can-i-run/gemma-3-27b-it/rtx-3060-12gb/)Won’t fit
* [Gemma 4 31B on an RTX 3060 12GB](https://whatcanirunai.vercel.app/can-i-run/gemma-4-31b-it/rtx-3060-12gb/)Won’t fit
* [gpt-oss-20b on an RTX 3060 12GB](https://whatcanirunai.vercel.app/can-i-run/gpt-oss-20b/rtx-3060-12gb/)Won’t fit

## Quick answers

Can I run Qwen3-8B on an RTX 3060 12GB?

Yes, but it is tight. Qwen3-8B at Q8\_0 needs about 11.0 GB, and the GeForce RTX 3060 12GB has 12.0 GB usable.

How much VRAM does Qwen3-8B need?

About 6.7 GB at Q4\_K\_M, 11.0 GB at Q8\_0 and 19.8 GB at FP16, estimated for a \~4k context.

How fast is Qwen3-8B on an RTX 3060 12GB?

Our estimate is 25–35 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/