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URL: https://willitrunai.com/can-run/qwen-3-vl-30b-a3b-on-a40-48gb

⇱ Qwen3-VL 30B A3B Instruct on NVIDIA A40 48GB? YES

Can Qwen3-VL 30B A3B Instruct run on NVIDIA A40 48GB?

YES — Runs Great

S95Excellent
○Estimated from fit model

Qwen3-VL 30B A3B Instruct needs ~27.0 GB VRAM. NVIDIA A40 48GB has 48.0 GB. With Q4_K_M quantization, expect ~65 tok/s.

Runtime: vLLMCapacity: RoomyBandwidth: MediumStack: OptimizedBottleneck: Balanced
Share:

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) — 27.0 GB, 64.5 tok/s, Runs well
27.0 GB required48.0 GB available
56% VRAM used

Fit status

Runs well

Decode

64.5 tok/s

TTFT

3000 ms

Safe context

246K

Memory

27.0 GB / 48.0 GB

Memory breakdown

Weights18.3 GB
KV Cache1.5 GB
Runtime2.4 GB
Headroom4.8 GB

See how fast it feels

See how fast it feelsQwen3-VL 30B A3B Instruct on NVIDIA A40 48GB
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: 64.5 tok/s decode · 3.0s TTFT (warm) · 161 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 well64.5 tok/s1637 ms246K
CodingSRuns well64.5 tok/s3000 ms246K
Agentic CodingSRuns well64.5 tok/s4364 ms246K
ReasoningSRuns well64.5 tok/s3546 ms246K
RAGSRuns well64.5 tok/s5455 ms246K

Quantization options

How Qwen3-VL 30B A3B Instruct (30B params) fits at each quantization level on NVIDIA A40 48GB (48.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
11.7 GB
LowS86
Q3_K_S
3
14.7 GB
LowS87
NVFP4
4
16.8 GB
MediumS87
Q4_K_M
4
18.3 GB
MediumS88
Q5_K_M
5
21.6 GB
HighS89
Q6_K
6
24.6 GB
HighS90
Q8_0Best for your GPU
8
32.1 GB
Very HighS90
F16
16
61.5 GB
MaximumF0

Get started

Copy-paste commands to run Qwen3-VL 30B A3B Instruct on your machine.

Run

lms load Qwen3-VL-30B-A3B-Instruct && lms server start

Your hardware

More models your NVIDIA A40 48GB can run

ModelParamsGradeDecodeCapabilities
👁 Alibaba
Qwen3-Coder 30B A3B Instruct		30.5BS62.4 tok/s
👁 Alibaba
Qwen 3.6 35B A3B		35BS52.4 tok/s

Frequently asked questions

See all results for NVIDIA A40 48GBSee all hardware for Qwen3-VL 30B A3B Instruct