Can Qwen 3 32B run on NVIDIA DGX Spark 128GB?

YES — Runs Great

A83Great

Estimated from fit model

Qwen 3 32B needs ~37.7 GB VRAM. NVIDIA DGX Spark 128GB has 108.8 GB. With Q4_K_M quantization, expect ~9 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: LowStack: BasicBottleneck: 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) — 37.7 GB, 9.1 tok/s, Runs well

37.7 GB required108.8 GB available

35% VRAM used

Fit status

Runs well

Decode

9.1 tok/s

TTFT

21215 ms

Safe context

131K

Memory

37.7 GB / 108.8 GB

Memory breakdown

Weights19.5 GB

KV Cache3.9 GB

Runtime1.2 GB

Headroom13.1 GB

See how fast it feels

See how fast it feelsQwen 3 32B on NVIDIA DGX Spark 128GB
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: 9.1 tok/s decode · 21.2s TTFT (warm) · 23 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

Shared-memory contention still exists

The OS, browser, and inference runtime all compete for the same physical memory pool, so real-world headroom is less forgiving than raw capacity suggests.

Best improvement path

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	A	Runs well	9.1 tok/s	11572 ms	131K
Coding	A	Runs well	9.1 tok/s	21215 ms	131K
Agentic Coding	A	Runs well	9.1 tok/s	30858 ms	131K
Reasoning	A	Runs well	9.1 tok/s	25072 ms	131K
RAG	A	Runs well	9.1 tok/s	38573 ms	131K

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 / Mac	Memory	Quant	Speed (tok/s)	Fits?
RTX 5090 32GB	32 GB	Q4_K_M	66.9	Tight
MacBook Pro M4 Max 128GB	128 GB	Q4_K_M	33.5	Fits
MacBook Pro M4 Max 64GB	64 GB	Q4_K_M	33.5	Fits
Mac Studio M3 Ultra 256GB	256 GB	Q4_K_M	31.0	Fits
Mac Studio M2 Ultra 128GB	128 GB	Q4_K_M	25.9	Fits
RTX 4090 24GB	24 GB	Q4_K_M	24.9	Heavy offload
Mac Studio M1 Ultra 128GB	128 GB	Q4_K_M	24.5	Fits
RX 7900 XTX 24GB	24 GB	Q4_K_M	23.0	Heavy offload
RTX 3090 24GB	24 GB	Q4_K_M	21.3	Heavy offload
MacBook Pro M4 Pro 48GB	48 GB	Q4_K_M	21.1	Tight
MacBook Pro M3 Max 64GB	64 GB	Q4_K_M	13.4	Fits
MacBook Pro M1 Max 64GB	64 GB	Q4_K_M	12.3	Fits
RTX 4080 Super 16GB	16 GB	Q4_K_M	9.0	Too big
RTX 4070 12GB	12 GB	Q4_K_M	3.2	Too big
RTX 3060 12GB	12 GB	Q4_K_M	2.0	Too big
RTX 4060 8GB	8 GB	Q4_K_M	2.0	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 Qwen 3 32B (32B params) fits at each quantization level on NVIDIA DGX Spark 128GB (92.2 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	12.5 GB	Low	A81
Q3_K_S	3	15.7 GB	Low	A81
NVFP4	4	17.9 GB	Medium	A82
Q4_K_M	4	19.5 GB	Medium	A82
Q5_K_M	5	23.0 GB	High	A82
Q6_K	6	26.2 GB	High	A83
Q8_0	8	34.2 GB	Very High	A85
F16Best for your GPU	16	65.6 GB	Maximum	S89

Get started

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

Run

ollama run qwen3:32b

Your hardware

More models your NVIDIA DGX Spark 128GB can run

Model	Params	Grade	Decode
Devstral 2 123B Instruct	123B	S	2.4 tok/s
Qwen 3.5 122B A10B	122B	S	6.6 tok/s
Qwen 3.6 35B A3B	35B	S	20.8 tok/s
Qwen 3.5 35B A3B	35B	S	22.6 tok/s

Frequently asked questions

Can NVIDIA DGX Spark 128GB run Qwen 3 32B?

Yes, NVIDIA DGX Spark 128GB can run Qwen 3 32B with a A grade (Runs well). Expected decode speed: 9.1 tok/s.

How much VRAM does Qwen 3 32B need?

Qwen 3 32B (32B parameters) requires approximately 37.7 GB of memory with Q4_K_M quantization.

What is the best quantization for Qwen 3 32B?

The recommended quantization for Qwen 3 32B is Q4_K_M, which balances quality and memory efficiency.

What speed will Qwen 3 32B run at on NVIDIA DGX Spark 128GB?

On NVIDIA DGX Spark 128GB, Qwen 3 32B achieves approximately 9.1 tokens per second decode speed with a time-to-first-token of 21215ms using Q4_K_M quantization.

Can NVIDIA DGX Spark 128GB run Qwen 3 32B for coding?

For coding workloads, Qwen 3 32B on NVIDIA DGX Spark 128GB receives a A grade with 9.1 tok/s and 131K context.

What context window can Qwen 3 32B use on NVIDIA DGX Spark 128GB?

On NVIDIA DGX Spark 128GB, Qwen 3 32B can safely use up to 131K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

Is unified memory on NVIDIA DGX Spark 128GB as fast as VRAM for Qwen 3 32B?

Not always. NVIDIA DGX Spark 128GB can often fit larger models thanks to unified memory, but a discrete GPU with dedicated high-bandwidth VRAM may still decode faster once the model fits. For this combination, the important distinction is capacity versus sustained throughput.

See all results for NVIDIA DGX Spark 128GB See all hardware for Qwen 3 32B

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