Can Ministral 8B run on Radeon RX 6850M XT 12GB?

YES — Runs Great

B65Good

Estimated from fit model

Ministral 8B needs ~9.2 GB VRAM. Radeon RX 6850M XT 12GB has 12.0 GB. With Q4_K_M quantization, expect ~53 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: LowStack: StandardBottleneck: Balanced

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 9.2 GB, 53.3 tok/s, Runs well

9.2 GB required12.0 GB available

77% VRAM used

Fit status

Runs well

Decode

53.3 tok/s

TTFT

3633 ms

Safe context

37K

Memory

9.2 GB / 12.0 GB

Memory breakdown

Weights4.9 GB

KV Cache2.2 GB

Runtime0.9 GB

Headroom1.2 GB

See how fast it feels

See how fast it feelsMinistral 8B on Radeon RX 6850M XT 12GB
1st promptCold start — includes initialization
>What is local AI inference?
Local AI inference means running an AI language model directly on your own hardware — your laptop, desktop, or server — instead of sending requests to a remote cloud API.

When you run inference locally the model weights are loaded into your GPU or unified memory. Each token you generate requires reading those weights from memory, so memory bandwidth is the main bottleneck for decode speed.

Key benefits of running locally:
  - Full privacy: your prompts never leave your machine
  - No per-token cost or rate limits
  - Works offline once the model is downloaded
  - Latency depends only on your hardware
2nd promptWarm — model ready, no init overhead
>How much VRAM do I need?
It depends on the model size and quantization level. A rough rule of thumb:

  Model size     Q4 (4-bit)    Q8 (8-bit)    FP16
  7B params      ~4.3 GB       ~7.5 GB       ~14 GB
  13B params     ~7.9 GB       ~13.9 GB      ~26 GB
  70B params     ~42.7 GB      ~74.9 GB      ~140 GB

Most people use 4-bit quantization (Q4_K_M) which gives 90-95% of full quality at a fraction of the memory. A 24 GB GPU can comfortably run most 7B-13B models.
Estimated: 53.3 tok/s decode · 3.6s TTFT (warm) · 133 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

No major red flags

This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.

Best improvement path

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	B	Runs well	53.3 tok/s	1982 ms	37K
Coding	B	Runs well	53.3 tok/s	3633 ms	37K
Agentic Coding	B	Tight fit	53.3 tok/s	5284 ms	37K
Reasoning	B	Runs well	53.3 tok/s	4293 ms	37K
RAG	B	Tight fit	53.3 tok/s	6605 ms	37K

Quantization options

How Ministral 8B (8B params) fits at each quantization level on Radeon RX 6850M XT 12GB (12.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	3.1 GB	Low	B59
Q3_K_S	3	3.9 GB	Low	B60
NVFP4	4	4.5 GB	Medium	B61
Q4_K_M	4	4.9 GB	Medium	B61
Q5_K_M	5	5.8 GB	High	B62
Q6_K	6	6.6 GB	High	B62
Q8_0Best for your GPU	8	8.6 GB	Very High	B61
F16	16	16.4 GB	Maximum	F0

Get started

Copy-paste commands to run Ministral 8B on your machine.

Run

ollama run ministral

Frequently asked questions

Can Radeon RX 6850M XT 12GB run Ministral 8B?

Yes, Radeon RX 6850M XT 12GB can run Ministral 8B with a B grade (Runs well). Expected decode speed: 53.3 tok/s.

How much VRAM does Ministral 8B need?

Ministral 8B (8B parameters) requires approximately 9.2 GB of memory with Q4_K_M quantization.

What is the best quantization for Ministral 8B?

The recommended quantization for Ministral 8B is Q4_K_M, which balances quality and memory efficiency.

What speed will Ministral 8B run at on Radeon RX 6850M XT 12GB?

On Radeon RX 6850M XT 12GB, Ministral 8B achieves approximately 53.3 tokens per second decode speed with a time-to-first-token of 3633ms using Q4_K_M quantization.

Can Radeon RX 6850M XT 12GB run Ministral 8B for coding?

For coding workloads, Ministral 8B on Radeon RX 6850M XT 12GB receives a B grade with 53.3 tok/s and 37K context.

What context window can Ministral 8B use on Radeon RX 6850M XT 12GB?

On Radeon RX 6850M XT 12GB, Ministral 8B can safely use up to 37K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

See all results for Radeon RX 6850M XT 12GB See all hardware for Ministral 8B

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<iframe src="https://willitrunai.com/embed/ministral-8b-on-rx-6850m-xt-12gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>

Preview:

Workload

Grade

Fit

Decode

TTFT

Context

Chat

Runs well

53.3 tok/s

1982 ms

37K

Coding

Runs well

53.3 tok/s

3633 ms

37K

Agentic Coding

Tight fit

53.3 tok/s

5284 ms

37K

Reasoning

Runs well

53.3 tok/s

4293 ms

37K

RAG

Tight fit

53.3 tok/s

6605 ms

37K

Quantization options

How Ministral 8B (8B params) fits at each quantization level on Radeon RX 6850M XT 12GB (12.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	3.1 GB	Low	B59
Q3_K_S	3	3.9 GB	Low	B60
NVFP4	4	4.5 GB	Medium	B61
Q4_K_M	4	4.9 GB	Medium	B61
Q5_K_M	5	5.8 GB	High	B62
Q6_K	6	6.6 GB	High	B62
Q8_0Best for your GPU	8	8.6 GB	Very High	B61
F16	16	16.4 GB	Maximum	F0

Frequently asked questions

Can Radeon RX 6850M XT 12GB run Ministral 8B?

Yes, Radeon RX 6850M XT 12GB can run Ministral 8B with a B grade (Runs well). Expected decode speed: 53.3 tok/s.

How much VRAM does Ministral 8B need?

Ministral 8B (8B parameters) requires approximately 9.2 GB of memory with Q4_K_M quantization.

What is the best quantization for Ministral 8B?

The recommended quantization for Ministral 8B is Q4_K_M, which balances quality and memory efficiency.

What speed will Ministral 8B run at on Radeon RX 6850M XT 12GB?

On Radeon RX 6850M XT 12GB, Ministral 8B achieves approximately 53.3 tokens per second decode speed with a time-to-first-token of 3633ms using Q4_K_M quantization.

Can Radeon RX 6850M XT 12GB run Ministral 8B for coding?

For coding workloads, Ministral 8B on Radeon RX 6850M XT 12GB receives a B grade with 53.3 tok/s and 37K context.

What context window can Ministral 8B use on Radeon RX 6850M XT 12GB?

On Radeon RX 6850M XT 12GB, Ministral 8B can safely use up to 37K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.