Can Ministral 3 3B run on RX 7900 XT 20GB?

YES — Runs Great

B69Good
Estimated from fit model

Ministral 3 3B needs ~7.2 GB VRAM. RX 7900 XT 20GB has 20.0 GB. With Q4_K_M quantization, expect ~42 tok/s.

Runtime: SGLangCapacity: RoomyBandwidth: HighStack: OptimizedBottleneck: Balanced
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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) 7.2 GB, 42.0 tok/s, Runs well
7.2 GB required20.0 GB available
36% VRAM used

Fit status

Runs well

Decode

42.0 tok/s

TTFT

4610 ms

Safe context

262K

Memory

7.2 GB / 20.0 GB

Memory breakdown

Weights1.8 GB
KV Cache0.7 GB
Runtime2.6 GB
Headroom2.0 GB

See how fast it feels

See how fast it feelsMinistral 3 3B on RX 7900 XT 20GB
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: 42.0 tok/s decode · 4.6s TTFT (warm) · 105 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

WorkloadGradeFitDecodeTTFTContext
ChatBRuns well42.0 tok/s2514 ms262K
CodingBRuns well42.0 tok/s4610 ms262K
Agentic CodingARuns well42.0 tok/s6705 ms262K
ReasoningBRuns well42.0 tok/s5448 ms262K
RAGARuns well42.0 tok/s8381 ms262K

Quantization options

How Ministral 3 3B (3B params) fits at each quantization level on RX 7900 XT 20GB (20.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
1.2 GB
LowB67
Q3_K_S
3
1.5 GB
LowB67
NVFP4
4
1.7 GB
MediumB67
Q4_K_M
4
1.8 GB
MediumB67
Q5_K_M
5
2.2 GB
HighB67
Q6_K
6
2.5 GB
HighB68
Q8_0
8
3.2 GB
Very HighB68
F16Best for your GPU
16
6.1 GB
MaximumA70

Get started

Copy-paste commands to run Ministral 3 3B on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \ --hf-repo "mistralai/Ministral-3-3B-Instruct-2512" \ --hf-file "Ministral-3-3B-Instruct-2512-Q4_K_M.gguf" \ -c 4096 -ngl 99

Upgrade-Optionen

Hardware, die Ministral 3 3B gut ausführt

Frequently asked questions

Can RX 7900 XT 20GB run Ministral 3 3B?

Yes, RX 7900 XT 20GB can run Ministral 3 3B with a B grade (Runs well). Expected decode speed: 42.0 tok/s.

How much VRAM does Ministral 3 3B need?

Ministral 3 3B (3B parameters) requires approximately 7.2 GB of memory with Q4_K_M quantization.

What is the best quantization for Ministral 3 3B?

The recommended quantization for Ministral 3 3B is Q4_K_M, which balances quality and memory efficiency.

What speed will Ministral 3 3B run at on RX 7900 XT 20GB?

On RX 7900 XT 20GB, Ministral 3 3B achieves approximately 42.0 tokens per second decode speed with a time-to-first-token of 4610ms using Q4_K_M quantization.

Can RX 7900 XT 20GB run Ministral 3 3B for coding?

For coding workloads, Ministral 3 3B on RX 7900 XT 20GB receives a B grade with 42.0 tok/s and 262K context.

What context window can Ministral 3 3B use on RX 7900 XT 20GB?

On RX 7900 XT 20GB, Ministral 3 3B can safely use up to 262K tokens of context. The model's official context limit is 262K, but available memory constrains the safe maximum.

See all results for RX 7900 XT 20GBSee all hardware for Ministral 3 3B
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