Can Qwen 3.5 35B A3B run on NVIDIA B200 180GB?

YES — Runs Great

S88Excellent

Estimated from fit model

Qwen 3.5 35B A3B needs ~42.0 GB VRAM. NVIDIA B200 180GB has 180.0 GB. With Q4_K_M quantization, expect ~929 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: HighStack: 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) — 42.0 GB, 928.7 tok/s, Runs well

42.0 GB required180.0 GB available

23% VRAM used

Fit status

Runs well

Decode

928.7 tok/s

TTFT

350 ms

Safe context

131K

Memory

42.0 GB / 180.0 GB

Memory breakdown

Weights21.3 GB

KV Cache1.5 GB

Runtime1.2 GB

Headroom18.0 GB

See how fast it feels

See how fast it feelsQwen 3.5 35B A3B on NVIDIA B200 180GB
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: 928.7 tok/s decode · 350ms TTFT (warm) · 2322 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

Workload	Grade	Fit	Decode	TTFT	Context
Chat	S	Runs well	928.7 tok/s	350 ms	131K
Coding	S	Runs well	928.7 tok/s	350 ms	131K
Agentic Coding	S	Runs well	928.7 tok/s	350 ms	131K
Reasoning	S	Runs well	928.7 tok/s	350 ms	131K
RAG	S	Runs well	928.7 tok/s	379 ms	131K

Quantization options

How Qwen 3.5 35B A3B (35B params) fits at each quantization level on NVIDIA B200 180GB (180.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	13.7 GB	Low	A79
Q3_K_S	3	17.2 GB	Low	A79
NVFP4	4	19.6 GB	Medium	A79
Q4_K_M	4	21.3 GB	Medium	A79
Q5_K_M	5	25.2 GB	High	A80
Q6_K	6	28.7 GB	High	A80
Q8_0	8	37.5 GB	Very High	A81
F16Best for your GPU	16	71.8 GB	Maximum	S85

Get started

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

Run

ollama run qwen3.5:35b-a3b

Your hardware

More models your NVIDIA B200 180GB can run

Model	Params	Grade	Decode
Devstral 2 123B Instruct	123B	S	97.4 tok/s
Qwen 3.5 122B A10B	122B	S	270.2 tok/s
DeepSeek V4 Flash	284B	S	144.8 tok/s

Frequently asked questions

Can NVIDIA B200 180GB run Qwen 3.5 35B A3B?

Yes, NVIDIA B200 180GB can run Qwen 3.5 35B A3B with a S grade (Runs well). Expected decode speed: 928.7 tok/s.

How much VRAM does Qwen 3.5 35B A3B need?

Qwen 3.5 35B A3B (35B parameters) requires approximately 42.0 GB of memory with Q4_K_M quantization.

What is the best quantization for Qwen 3.5 35B A3B?

The recommended quantization for Qwen 3.5 35B A3B is Q4_K_M, which balances quality and memory efficiency.

What speed will Qwen 3.5 35B A3B run at on NVIDIA B200 180GB?

On NVIDIA B200 180GB, Qwen 3.5 35B A3B achieves approximately 928.7 tokens per second decode speed with a time-to-first-token of 350ms using Q4_K_M quantization.

Can NVIDIA B200 180GB run Qwen 3.5 35B A3B for coding?

For coding workloads, Qwen 3.5 35B A3B on NVIDIA B200 180GB receives a S grade with 928.7 tok/s and 131K context.

What context window can Qwen 3.5 35B A3B use on NVIDIA B200 180GB?

On NVIDIA B200 180GB, Qwen 3.5 35B A3B can safely use up to 131K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

See all results for NVIDIA B200 180GB See all hardware for Qwen 3.5 35B A3B

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