Can Magistral 7B run on RX 590 8GB?

YES — With Offload

A78Great

Estimated from fit model

Magistral 7B needs ~7.9 GB VRAM. RX 590 8GB has 8.0 GB. With Q4_K_M quantization, expect ~26 tok/s.

Runtime: llama.cppCapacity: OffloadBandwidth: 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) — 7.9 GB, 27.7 tok/s, Runs with offload

7.9 GB required8.0 GB available

99% VRAM used

Fit status

Runs with offload

Decode

27.7 tok/s

TTFT

6986 ms

Safe context

Memory

7.9 GB / 8.0 GB

Memory breakdown

Weights4.3 GB

KV Cache2.0 GB

Runtime0.9 GB

Headroom0.8 GB

See how fast it feels

See how fast it feelsMagistral 7B on RX 590 8GB
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: 27.7 tok/s decode · 7.0s TTFT (warm) · 69 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

Very little memory headroom

You can run the model, but there is not much room left for longer context, bigger batches, extra apps, or future model updates.

Older PCIe generation

PCIe 3.0 is workable, but it compounds the penalty when you offload heavily or try to scale across multiple cards.

Best improvement path

Buy headroom, not only minimum fit

A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	A	Tight fit	25.8 tok/s	4096 ms	8K
Coding	A	Runs with offload	25.8 tok/s	7510 ms	8K
Agentic Coding	F	Too heavy	11.8 tok/s	23786 ms	8K
Reasoning	A	Runs with offload	25.8 tok/s	8875 ms	8K
RAG	F	Too heavy	11.8 tok/s	29732 ms	8K

Quantization options

How Magistral 7B (7B params) fits at each quantization level on RX 590 8GB (8.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	2.7 GB	Low	A81
Q3_K_S	3	3.4 GB	Low	A81
NVFP4	4	3.9 GB	Medium	A81
Q4_K_M	4	4.3 GB	Medium	A81
Q5_K_MBest for your GPU	5	5.0 GB	High	A81
Q6_K	6	5.7 GB	High	F0
Q8_0	8	7.5 GB	Very High	F0
F16	16	14.3 GB	Maximum	F0

Get started

Copy-paste commands to run Magistral 7B on your machine.

Run

lms load Magistral-7B && lms server start

Your hardware

More models your RX 590 8GB can run

Model	Params	Grade	Decode
Qwen 3.5 9B	9B	A	11.1 tok/s
Qwen 3 8B	8B	A	14.4 tok/s
Nemotron Nano 8B	8B	A	15.4 tok/s
InternVL2 8B	8B	A	15.4 tok/s
Ministral 3 8B	8B	B	14.4 tok/s

Frequently asked questions

Can RX 590 8GB run Magistral 7B?

Yes, RX 590 8GB can run Magistral 7B with a A grade (Runs with offload). Expected decode speed: 25.8 tok/s.

How much VRAM does Magistral 7B need?

Magistral 7B (7B parameters) requires approximately 7.9 GB of memory with Q4_K_M quantization.

What is the best quantization for Magistral 7B?

The recommended quantization for Magistral 7B is Q4_K_M, which balances quality and memory efficiency.

What speed will Magistral 7B run at on RX 590 8GB?

On RX 590 8GB, Magistral 7B achieves approximately 25.8 tokens per second decode speed with a time-to-first-token of 7510ms using Q4_K_M quantization.

Can RX 590 8GB run Magistral 7B for coding?

For coding workloads, Magistral 7B on RX 590 8GB receives a A grade with 25.8 tok/s and 8K context.

What context window can Magistral 7B use on RX 590 8GB?

On RX 590 8GB, Magistral 7B can safely use up to 8K tokens of context. The model's official context limit is 8K, but available memory constrains the safe maximum.

What should I upgrade first if Magistral 7B feels slow on RX 590 8GB?

Buy headroom, not only minimum fit. A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

See all results for RX 590 8GB See all hardware for Magistral 7B

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