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URL: https://willitrunai.com/can-run/qwen-3.5-35b-a3b-on-a40-48gb


Can Qwen 3.5 35B A3B run on NVIDIA A40 48GB?

YES — Runs Great

S95Excellent
Estimated from fit model

Qwen 3.5 35B A3B needs ~28.8 GB VRAM. NVIDIA A40 48GB has 48.0 GB. With Q4_K_M quantization, expect ~69 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: 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) — 28.8 GB, 75.0 tok/s, Runs well
28.8 GB required48.0 GB available
60% VRAM used

Fit status

Runs well

Decode

75.0 tok/s

TTFT

2580 ms

Safe context

131K

Memory

28.8 GB / 48.0 GB

Memory breakdown

Weights21.3 GB
KV Cache1.5 GB
Runtime1.2 GB
Headroom4.8 GB

See how fast it feels

See how fast it feelsQwen 3.5 35B A3B on NVIDIA A40 48GB
1st promptCold start — includes initialization
>Write a Python function to sort a list
Here's a Python function that sorts a list using quicksort: def quicksort(arr): if len(arr) <= 1: return arr pivot = arr[len(arr) // 2] left = [x for x in arr if x < pivot] middle = [x for x in arr if x == pivot] right = [x for x in arr if x > pivot] return quicksort(left) + middle + quicksort(right) # Example usage numbers = [3, 6, 8, 10, 1, 2, 1] print(quicksort(numbers)) # [1, 1, 2, 3, 6, 8, 10] The algorithm picks a pivot, partitions the list into smaller, equal, and larger elements, then recursively sorts each partition and concatenates the results.
2nd promptWarm — model ready, no init overhead
>Now add type hints and a docstring
def quicksort(arr: list[int]) -> list[int]: """Sort a list using the quicksort algorithm. Args: arr: List of integers to sort. Returns: A new sorted list. """ if len(arr) <= 1: return arr pivot = arr[len(arr) // 2] left = [x for x in arr if x < pivot] middle = [x for x in arr if x == pivot] right = [x for x in arr if x > pivot] return quicksort(left) + middle + quicksort(right) Added type hints for the input and return type, plus a Google-style docstring.
Estimated: 75.0 tok/s decode · 2.6s TTFT (warm) · 188 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 well69.0 tok/s1531 ms131K
CodingSRuns well69.0 tok/s2806 ms131K
Agentic CodingSRuns well75.0 tok/s3753 ms131K
ReasoningSRuns well75.0 tok/s3050 ms131K
RAGSRuns well75.0 tok/s4692 ms131K

Quantization options

How Qwen 3.5 35B A3B (35B params) fits at each quantization level on NVIDIA A40 48GB (48.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
13.7 GB
LowS86
Q3_K_S
3
17.2 GB
LowS87
NVFP4
4

Get started

Copy-paste commands to run Qwen 3.5 35B A3B on your machine.

Run

ollama run qwen3.5:35b-a3b

Frequently asked questions

See all results for NVIDIA A40 48GBSee all hardware for Qwen 3.5 35B A3B
19.6 GB
Medium
S88
Q4_K_M
4
21.3 GB
MediumS88
Q5_K_M
5
25.2 GB
HighS90
Q6_K
6
28.7 GB
HighS90
Q8_0Best for your GPU
8
37.5 GB
Very HighS89
F16
16
71.8 GB
MaximumF0