Will It Run AI

Can Magistral Small 2507 run on RTX PRO 4000 Blackwell 24GB?

YES — Tight Fit

S93Excellent
Estimated from fit model

Magistral Small 2507 needs ~20.7 GB VRAM. RTX PRO 4000 Blackwell 24GB has 24.0 GB. With Q4_K_M quantization, expect ~41 tok/s.

Runtime: OllamaCapacity: TightBandwidth: MediumStack: BasicBottleneck: 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) — 20.7 GB, 41.4 tok/s, Tight fit
20.7 GB required24.0 GB available
86% VRAM used

Fit status

Tight fit

Decode

41.4 tok/s

TTFT

4671 ms

Safe context

38K

Memory

20.7 GB / 24.0 GB

Memory breakdown

Weights14.6 GB
KV Cache2.4 GB
Runtime1.2 GB
Headroom2.4 GB

See how fast it feels

See how fast it feelsMagistral Small 2507 on RTX PRO 4000 Blackwell 24GB
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: 41.4 tok/s decode · 4.7s TTFT (warm) · 104 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
ChatSRuns well41.4 tok/s2548 ms38K
CodingSTight fit41.4 tok/s4671 ms38K
Agentic CodingSRuns with offload41.4 tok/s6794 ms38K
ReasoningSTight fit41.4 tok/s5520 ms38K
RAGSRuns with offload41.4 tok/s8492 ms38K

Quantization options

How Magistral Small 2507 (24B params) fits at each quantization level on RTX PRO 4000 Blackwell 24GB (24.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
9.4 GB
LowS90
Q3_K_S
3
11.8 GB
LowS92
NVFP4
4
13.4 GB
MediumS92
Q4_K_M
4
14.6 GB
MediumS91
Q5_K_MBest for your GPU
5
17.3 GB
HighS91
Q6_K
6
19.7 GB
HighF0
Q8_0
8
25.7 GB
Very HighF0
F16
16
49.2 GB
MaximumF0

Get started

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

Run

ollama run magistral

Your hardware

More models your RTX PRO 4000 Blackwell 24GB can run

ModelParamsGradeDecodeCapabilities
AlibabaQwen3-Coder 30B A3B Instruct30.5BS85.4 tok/s
AlibabaQwen 3.5 27B27BS37 tok/s
AlibabaQwen 3.6 27B27BS37.1 tok/s
AlibabaQwen3-VL 30B A3B Instruct30BS88.3 tok/s
AlibabaQwen 3.5 35B A3B35BA49.1 tok/s

Frequently asked questions

Can RTX PRO 4000 Blackwell 24GB run Magistral Small 2507?

Yes, RTX PRO 4000 Blackwell 24GB can run Magistral Small 2507 with a S grade (Tight fit). Expected decode speed: 41.4 tok/s.

How much VRAM does Magistral Small 2507 need?

Magistral Small 2507 (24B parameters) requires approximately 20.7 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 RTX PRO 4000 Blackwell 24GB?

On RTX PRO 4000 Blackwell 24GB, Magistral Small 2507 achieves approximately 41.4 tokens per second decode speed with a time-to-first-token of 4671ms using Q4_K_M quantization.

Can RTX PRO 4000 Blackwell 24GB run Magistral Small 2507 for coding?

For coding workloads, Magistral Small 2507 on RTX PRO 4000 Blackwell 24GB receives a S grade with 41.4 tok/s and 38K context.

What context window can Magistral Small 2507 use on RTX PRO 4000 Blackwell 24GB?

On RTX PRO 4000 Blackwell 24GB, Magistral Small 2507 can safely use up to 38K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

See all results for RTX PRO 4000 Blackwell 24GBSee all hardware for Magistral Small 2507
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