Can Magistral Small 2507 run on AMD Instinct MI325X 256GB?

YES — Runs Great

S87Excellent

Estimated from fit model

Magistral Small 2507 needs ~43.6 GB VRAM. AMD Instinct MI325X 256GB has 256.0 GB. With Q4_K_M quantization, expect ~322 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: 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) — 43.6 GB, 321.6 tok/s, Runs well

43.6 GB required256.0 GB available

17% VRAM used

Fit status

Runs well

Decode

321.6 tok/s

TTFT

602 ms

Safe context

131K

Memory

43.6 GB / 256.0 GB

Memory breakdown

Weights14.6 GB

KV Cache2.4 GB

Runtime0.9 GB

Headroom25.6 GB

See how fast it feels

See how fast it feelsMagistral Small 2507 on AMD Instinct MI325X 256GB
1st promptCold start — includes initialization
>Solve: If a train travels at 60 mph for 2.5 hours, how far does it go?
Let me work through this step by step.

Given information:
  - Speed = 60 mph (miles per hour)
  - Time  = 2.5 hours

Formula: Distance = Speed x Time

Calculation:
  Distance = 60 mph x 2.5 h
           = 150 miles

The train travels 150 miles.

Double-check: at 60 mph the train covers 60 miles each hour. In half an hour it covers 30 miles. So in 2.5 hours: 60 + 60 + 30 = 150 miles. Confirmed.
2nd promptWarm — model ready, no init overhead
>What if the train stops for 20 minutes halfway?
The stop doesn't change the total distance covered while moving, but it affects total trip time.

Breakdown:
  - First half: 1.25 hours at 60 mph = 75 miles
  - Stop: 20 minutes (no distance)
  - Second half: 1.25 hours at 60 mph = 75 miles

Total distance: 150 miles (same)
Total time: 2.5 h + 0.33 h = 2.83 hours
Average speed: 150 / 2.83 = 53 mph

The distance stays the same but average speed drops to 53 mph because of the stop.
Estimated: 321.6 tok/s decode · 602ms TTFT (warm) · 804 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	S	Runs well	321.6 tok/s	350 ms	131K
Coding	S	Runs well	321.6 tok/s	602 ms	131K
Agentic Coding	S	Runs well	321.6 tok/s	876 ms	131K
Reasoning	S	Runs well	321.6 tok/s	711 ms	131K
RAG	S	Runs well	321.6 tok/s	1094 ms	131K

Inference speed

Magistral Small 2507 inference speed — tokens per second by GPU & Mac

Estimated decode speed (tokens/sec) for Magistral Small 2507 at Q4_K_M across popular GPUs and Apple Silicon, using the fastest local runtime per device. Fastest is RTX 5090 32GB at ~88 tok/s. Speed is memory-bandwidth bound, so cards that fit the whole model in VRAM run far faster than ones that offload to system RAM.

GPU / Mac	Memory	Quant	Speed (tok/s)	Fits?
RTX 5090 32GB	32 GB	Q4_K_M	88.2	Fits
RTX 4090 24GB	24 GB	Q4_K_M	56.3	Tight
RX 7900 XTX 24GB	24 GB	Q4_K_M	50.8	Tight
RTX 3090 24GB	24 GB	Q4_K_M	48.1	Tight
Mac Studio M3 Ultra 256GB	256 GB	Q4_K_M	40.9	Fits
MacBook Pro M4 Max 128GB	128 GB	Q4_K_M	36.8	Fits
MacBook Pro M4 Max 64GB	64 GB	Q4_K_M	36.8	Fits
Mac Studio M2 Ultra 128GB	128 GB	Q4_K_M	34.1	Fits
Mac Studio M1 Ultra 128GB	128 GB	Q4_K_M	32.3	Fits
MacBook Pro M4 Pro 48GB	48 GB	Q4_K_M	23.2	Fits
RTX 4080 Super 16GB	16 GB	Q4_K_M	21.3	Too big
MacBook Pro M3 Max 64GB	64 GB	Q4_K_M	17.6	Fits
MacBook Pro M1 Max 64GB	64 GB	Q4_K_M	16.2	Fits
RTX 4070 12GB	12 GB	Q4_K_M	7.5	Too big
RTX 3060 12GB	12 GB	Q4_K_M	4.7	Too big
RTX 4060 8GB	8 GB	Q4_K_M	2.2	Too big

Estimates for single-stream decoding at Q4_K_M; real tokens/sec varies with prompt length, context, batch size, and runtime build. Prompt processing (prefill) is faster than the decode figures shown here.

Quantization options

How Magistral Small 2507 (24B params) fits at each quantization level on AMD Instinct MI325X 256GB (256.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	9.4 GB	Low	A78
Q3_K_S	3	11.8 GB	Low	A78
NVFP4	4	13.4 GB	Medium	A78
Q4_K_M	4	14.6 GB	Medium	A78
Q5_K_M	5	17.3 GB	High	A78
Q6_K	6	19.7 GB	High	A78
Q8_0	8	25.7 GB	Very High	A79
F16Best for your GPU	16	49.2 GB	Maximum	A81

Get started

Copy-paste commands to run Magistral Small 2507 on your machine.

Run

ollama run magistral

Your hardware

More models your AMD Instinct MI325X 256GB can run

Model	Params	Grade	Decode
Qwen 3.5 397B A17B	397B	A	39.2 tok/s
Devstral 2 123B Instruct	123B	S	63.5 tok/s
Qwen3-Coder 30B A3B Instruct	30.5B	S	662.3 tok/s
Qwen 3.5 27B	27B	S	287.2 tok/s
Qwen 3.6 27B	27B	S	179 tok/s

Frequently asked questions

Can AMD Instinct MI325X 256GB run Magistral Small 2507?

Yes, AMD Instinct MI325X 256GB can run Magistral Small 2507 with a S grade (Runs well). Expected decode speed: 321.6 tok/s.

How much VRAM does Magistral Small 2507 need?

Magistral Small 2507 (24B parameters) requires approximately 43.6 GB of memory with Q4_K_M quantization.

What is the best quantization for Magistral Small 2507?

The recommended quantization for Magistral Small 2507 is Q4_K_M, which balances quality and memory efficiency.

What speed will Magistral Small 2507 run at on AMD Instinct MI325X 256GB?

On AMD Instinct MI325X 256GB, Magistral Small 2507 achieves approximately 321.6 tokens per second decode speed with a time-to-first-token of 602ms using Q4_K_M quantization.

Can AMD Instinct MI325X 256GB run Magistral Small 2507 for coding?

For coding workloads, Magistral Small 2507 on AMD Instinct MI325X 256GB receives a S grade with 321.6 tok/s and 131K context.

What context window can Magistral Small 2507 use on AMD Instinct MI325X 256GB?

On AMD Instinct MI325X 256GB, Magistral Small 2507 can safely use up to 131K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

See all results for AMD Instinct MI325X 256GB See all hardware for Magistral Small 2507

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Preview:

Workload

Grade

Fit

Decode

TTFT

Context

Chat

Runs well

321.6 tok/s

350 ms

131K

Coding

Runs well

321.6 tok/s

602 ms

131K

Agentic Coding

Runs well

321.6 tok/s

876 ms

131K

Reasoning

Runs well

321.6 tok/s

711 ms

131K

RAG

Runs well

321.6 tok/s

1094 ms

131K

Magistral Small 2507 inference speed — tokens per second by GPU & Mac

GPU / Mac

Memory

Quant

Speed (tok/s)

Fits?

RTX 5090 32GB

32 GB

Q4_K_M

88.2

Fits

RTX 4090 24GB

24 GB

Q4_K_M

56.3

Tight

RX 7900 XTX 24GB

24 GB

Q4_K_M

50.8

Tight

RTX 3090 24GB

24 GB

Q4_K_M

48.1

Tight

Mac Studio M3 Ultra 256GB

256 GB

Q4_K_M

40.9

Fits

MacBook Pro M4 Max 128GB

128 GB

Q4_K_M

36.8

Fits

MacBook Pro M4 Max 64GB

64 GB

Q4_K_M

36.8

Fits

Mac Studio M2 Ultra 128GB

128 GB

Q4_K_M

34.1

Fits

Mac Studio M1 Ultra 128GB

128 GB

Q4_K_M

32.3

Fits

MacBook Pro M4 Pro 48GB

48 GB

Q4_K_M

23.2

Fits

RTX 4080 Super 16GB

16 GB

Q4_K_M

21.3

Too big

MacBook Pro M3 Max 64GB

64 GB

Q4_K_M

17.6

Fits

MacBook Pro M1 Max 64GB

64 GB

Q4_K_M

16.2

Fits

RTX 4070 12GB

12 GB

Q4_K_M

7.5

Too big

RTX 3060 12GB

12 GB

Q4_K_M

4.7

Too big

RTX 4060 8GB

8 GB

Q4_K_M

2.2

Too big

Quantization options

How Magistral Small 2507 (24B params) fits at each quantization level on AMD Instinct MI325X 256GB (256.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	9.4 GB	Low	A78
Q3_K_S	3	11.8 GB	Low	A78
NVFP4	4	13.4 GB	Medium	A78
Q4_K_M	4	14.6 GB	Medium	A78
Q5_K_M	5	17.3 GB	High	A78
Q6_K	6	19.7 GB	High	A78
Q8_0	8	25.7 GB	Very High	A79
F16Best for your GPU	16	49.2 GB	Maximum	A81

Model

Params

Grade

Decode

Capabilities

Qwen 3.5 397B A17B

397B

39.2 tok/s

Devstral 2 123B Instruct

123B

63.5 tok/s

Qwen3-Coder 30B A3B Instruct

30.5B

662.3 tok/s

Qwen 3.5 27B

27B

287.2 tok/s

Qwen 3.6 27B

27B

179 tok/s

Frequently asked questions

Can AMD Instinct MI325X 256GB run Magistral Small 2507?

Yes, AMD Instinct MI325X 256GB can run Magistral Small 2507 with a S grade (Runs well). Expected decode speed: 321.6 tok/s.

How much VRAM does Magistral Small 2507 need?

Magistral Small 2507 (24B parameters) requires approximately 43.6 GB of memory with Q4_K_M quantization.

What is the best quantization for Magistral Small 2507?

The recommended quantization for Magistral Small 2507 is Q4_K_M, which balances quality and memory efficiency.

What speed will Magistral Small 2507 run at on AMD Instinct MI325X 256GB?

On AMD Instinct MI325X 256GB, Magistral Small 2507 achieves approximately 321.6 tokens per second decode speed with a time-to-first-token of 602ms using Q4_K_M quantization.

Can AMD Instinct MI325X 256GB run Magistral Small 2507 for coding?

For coding workloads, Magistral Small 2507 on AMD Instinct MI325X 256GB receives a S grade with 321.6 tok/s and 131K context.

What context window can Magistral Small 2507 use on AMD Instinct MI325X 256GB?

On AMD Instinct MI325X 256GB, Magistral Small 2507 can safely use up to 131K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.