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URL: https://willitrunai.com/can-run/wizardlm-13b-on-rtx-pro-4000-blackwell-24gb


Can WizardLM 13B run on RTX PRO 4000 Blackwell 24GB?

YES — With Offload

A74Great
Estimated from fit model

WizardLM 13B needs ~23.7 GB VRAM. RTX PRO 4000 Blackwell 24GB has 24.0 GB. With Q4_K_M quantization, expect ~71 tok/s.

Runtime: OllamaCapacity: OffloadBandwidth: 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) — 23.7 GB, 71.2 tok/s, Runs with offload
23.7 GB required24.0 GB available
99% VRAM used

Fit status

Runs with offload

Decode

71.2 tok/s

TTFT

2720 ms

Safe context

8K

Memory

23.7 GB / 24.0 GB

Memory breakdown

Weights7.9 GB
KV Cache12.2 GB
Runtime1.2 GB
Headroom2.4 GB

See how fast it feels

See how fast it feelsWizardLM 13B 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: 71.2 tok/s decode · 2.7s TTFT (warm) · 178 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.

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

WorkloadGradeFitDecodeTTFTContext
ChatARuns well71.2 tok/s1484 ms8K
CodingARuns with offload71.2 tok/s2720 ms8K
Agentic CodingFToo heavy23.9 tok/s11793 ms8K
ReasoningARuns with offload71.2 tok/s3214 ms8K
RAGFToo heavy23.9 tok/s14741 ms8K

Quantization options

How WizardLM 13B (13B params) fits at each quantization level on RTX PRO 4000 Blackwell 24GB (24.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
5.1 GB
LowB66
Q3_K_S
3
6.4 GB
LowB67
NVFP4
4

Get started

Copy-paste commands to run WizardLM 13B on your machine.

Run

lms load WizardLM-13B-V1.0 && lms server start

Your hardware

More models your RTX PRO 4000 Blackwell 24GB can run

ModelParamsGradeDecodeCapabilities
👁 Alibaba
Qwen3-Coder 30B A3B Instruct
30.5BS85.4 tok/s
👁 Alibaba
Qwen 3.5 27B
27BS37 tok/s

Frequently asked questions

See all results for RTX PRO 4000 Blackwell 24GBSee all hardware for WizardLM 13B
7.3 GB
Medium
B67
Q4_K_M
4
7.9 GB
MediumB68
Q5_K_M
5
9.4 GB
HighB69
Q6_K
6
10.7 GB
HighB70
Q8_0Best for your GPU
8
13.9 GB
Very HighA71
F16
16
26.7 GB
MaximumF0
👁 Alibaba
Qwen 3.6 27B
27BS37.1 tok/s
👁 Alibaba
Qwen3-VL 30B A3B Instruct
30BS88.3 tok/s
👁 Alibaba
Qwen 3.5 35B A3B
35BA49.1 tok/s

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