willitrun·ai

Can Qwen 3 32B run on RTX 5080 Laptop 16GB?

YES — With Q2_K

A75Great
Estimated from fit model

Qwen 3 32B needs ~19.2 GB VRAM. RTX 5080 Laptop 16GB has 16.0 GB. With Q2_K quantization, expect ~25 tok/s.

Runtime: OllamaCapacity: OffloadBandwidth: MediumStack: BasicBottleneck: Host offload
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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.

Qwen 3 32B at Q4_K_M needs 26.2 GB — too much for RTX 5080 Laptop 16GB (16.0 GB). Runs at Q2_K (19.2 GB) with low quality.
Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) 26.2 GB, exceeds 16.0 GB available
26.2 GB required16.0 GB available
164% VRAM needed

10.2 GB over capacity — needs offload or smaller quantization

Fit status

Too heavy

Decode

9.5 tok/s

TTFT

20325 ms

Safe context

4K

Memory

26.2 GB / 16.0 GB

Offload

40%

Memory breakdown

Weights19.5 GB
KV Cache3.9 GB
Runtime1.2 GB
Headroom1.6 GB

See how fast it feels

With memory offload — actual speed may be lower
See how fast it feelsQwen 3 32B on RTX 5080 Laptop 16GB
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: 9.5 tok/s decode · 20.3s TTFT (warm) · 24 tok/s prefill

What limits this setup

It fits through host-memory offload, and offload is the main reason performance drops.

CPU or host-memory offload is active

About 20% of the working set spills out of accelerator memory, which usually hurts latency and sustained decode throughput.

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

Remove offload with more accelerator memory

Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.

Buy headroom, not only minimum fit

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

Increase host RAM if you keep offloading

This setup may need roughly 2.1 GB of extra host RAM just for the offloaded portion, before OS and other tools.

Performance by workload

WorkloadGradeFitDecodeTTFTContext
ChatFToo heavy11.2 tok/s9420 ms4K
CodingFToo heavy9.5 tok/s20325 ms4K
Agentic CodingFToo heavy7.1 tok/s39598 ms4K
ReasoningFToo heavy9.5 tok/s24020 ms4K
RAGFToo heavy7.1 tok/s49498 ms4K

Inference speed

Qwen 3 32B inference speed — tokens per second by GPU & Mac

Estimated decode speed (tokens/sec) for Qwen 3 32B at Q4_K_M across popular GPUs and Apple Silicon, using the fastest local runtime per device. Fastest is RTX 5090 32GB at ~67 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 / MacMemoryQuantSpeed (tok/s)Fits?
NVIDIARTX 5090 32GB
32 GBQ4_K_M66.9Tight
MacBook Pro M4 Max 128GB
128 GBQ4_K_M33.5Fits
MacBook Pro M4 Max 64GB
64 GBQ4_K_M33.5Fits
Mac Studio M3 Ultra 256GB
256 GBQ4_K_M31.0Fits
Mac Studio M2 Ultra 128GB
128 GBQ4_K_M25.9Fits
NVIDIARTX 4090 24GB
24 GBQ4_K_M24.9Heavy offload
Mac Studio M1 Ultra 128GB
128 GBQ4_K_M24.5Fits
RX 7900 XTX 24GB
24 GBQ4_K_M23.0Heavy offload
NVIDIARTX 3090 24GB
24 GBQ4_K_M21.3Heavy offload
MacBook Pro M4 Pro 48GB
48 GBQ4_K_M21.1Tight
MacBook Pro M3 Max 64GB
64 GBQ4_K_M13.4Fits
MacBook Pro M1 Max 64GB
64 GBQ4_K_M12.3Fits
NVIDIARTX 4080 Super 16GB
16 GBQ4_K_M9.0Too big
NVIDIARTX 4070 12GB
12 GBQ4_K_M3.2Too big
NVIDIARTX 3060 12GB
12 GBQ4_K_M2.0Too big
NVIDIARTX 4060 8GB
8 GBQ4_K_M2.0Too 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 Qwen 3 32B (32B params) fits at each quantization level on RTX 5080 Laptop 16GB (16.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
12.5 GB
LowF0
Q3_K_S
3
15.7 GB
LowF0
NVFP4
4
17.9 GB
MediumF0
Q4_K_M
4
19.5 GB
MediumF0
Q5_K_M
5
23.0 GB
HighF0
Q6_K
6
26.2 GB
HighF0
Q8_0
8
34.2 GB
Very HighF0
F16
16
65.6 GB
MaximumF0

Get started

Copy-paste commands to run Qwen 3 32B on your machine.

Run

ollama run qwen3:32b

Opções de upgrade

Hardware que roda bem Qwen 3 32B

Frequently asked questions

Can RTX 5080 Laptop 16GB run Qwen 3 32B?

Yes, RTX 5080 Laptop 16GB can run Qwen 3 32B at Q2_K quantization (Very compromised (needs ~2.1 GB host RAM)). The recommended Q4_K_M requires 26.2 GB which exceeds available memory, but at Q2_K it needs only 19.2 GB. Expected decode speed: 24.5 tok/s.

How much VRAM does Qwen 3 32B need?

Qwen 3 32B (32B parameters) requires approximately 26.2 GB at Q4_K_M quantization. On RTX 5080 Laptop 16GB, it fits at Q2_K using 19.2 GB.

What is the best quantization for Qwen 3 32B?

The recommended quantization is Q4_K_M, but on RTX 5080 Laptop 16GB the best fitting quantization is Q2_K, which uses 19.2 GB.

What speed will Qwen 3 32B run at on RTX 5080 Laptop 16GB?

On RTX 5080 Laptop 16GB, Qwen 3 32B achieves approximately 24.5 tokens per second decode speed with a time-to-first-token of 7918ms using Q2_K quantization.

Can RTX 5080 Laptop 16GB run Qwen 3 32B for coding?

For coding workloads, Qwen 3 32B on RTX 5080 Laptop 16GB receives a F grade with 9.5 tok/s and 4K context.

What context window can Qwen 3 32B use on RTX 5080 Laptop 16GB?

On RTX 5080 Laptop 16GB, Qwen 3 32B can safely use up to 4K tokens of context at Q2_K quantization. The model's official context limit is 131K, but available memory constrains the safe maximum.

What should I upgrade first if Qwen 3 32B feels slow on RTX 5080 Laptop 16GB?

Remove offload with more accelerator memory. Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.

See all results for RTX 5080 Laptop 16GBSee all hardware for Qwen 3 32B
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