How much VRAM does Qwen3.5 35B A3B need?

Qwen3.5 35B A3B (35B parameters) requires approximately 38.4 GB of memory with Q4_K_M quantization.

What is the best quantization for Qwen3.5 35B A3B?

The recommended quantization for Qwen3.5 35B A3B is Q4_K_M, which balances quality and memory efficiency.

Can it run?

Yes, Mac Studio M3 Ultra 96GB can run Qwen3.5 35B A3B with a C grade (Runs well). Expected decode speed: 24.9 tok/s.

CUsable

Runs well

Using Q4_K_M in Ollama

Capabilities:

Fit status

Runs well

Decode

24.9 tok/s

TTFT

7764 ms

Safe context

29K

Memory

38.4 GB / 69.1 GB

Weights21.4 GB

KV Cache5.5 GB

Runtime1.2 GB

Headroom10.4 GB

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	C	Runs well	26.1 tok/s	10795 ms	50K
Chat	C	Runs well	26.1 tok/s	4048 ms	16K
Coding	C	Runs well	24.9 tok/s	7764 ms	29K
RAG	C	Runs well	26.1 tok/s	13494 ms	50K
Reasoning	C	Runs well	26.1 tok/s	8771 ms	29K

How Qwen3.5 35B A3B (35B params) fits at each quantization level on Mac Studio M3 Ultra 96GB (69.1 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	13.7 GB	Low	D34
Q3_K_S	3	17.2 GB	Low	D35
NVFP4	4

HuggingFace

huggingface-cli download hf-unsloth--qwen3-5-35b-a3b-gguf

Upgrade options

NVIDIA A100 80GBBudget pick

C80.2 tok/s decode

~$15,000 MSRP

NVIDIA H100 PCIe 80GBBest value

C78.7 tok/s decode

~$30,000 MSRP

NVIDIA H100 80GBBiggest leap

C131.8 tok/s decode

~$40,000 MSRP