Question 1

Can NVIDIA H200 PCIe 141GB run Qwen3.5 122B A10B?

Accepted Answer

Yes, NVIDIA H200 PCIe 141GB can run Qwen3.5 122B A10B with a C grade (Runs well). Expected decode speed: 53.8 tok/s.

Question 2

How much VRAM does Qwen3.5 122B A10B need?

Accepted Answer

Qwen3.5 122B A10B (122B parameters) requires approximately 94.1 GB of memory with Q3_K_M quantization.

Question 3

What is the best quantization for Qwen3.5 122B A10B?

Accepted Answer

The recommended quantization for Qwen3.5 122B A10B is Q3_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	B	Runs well	62.7 tok/s	4489 ms	40K
Chat	C	Runs well	62.7 tok/s	1684 ms	13K
Coding	C	Runs well	53.8 tok/s	3601 ms	24K
RAG	B	Runs well	62.7 tok/s	5612 ms	40K
Reasoning	B	Runs well	62.7 tok/s	3648 ms	24K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	47.6 GB	Low	D37
Q3_K_S	3	59.8 GB	Low	D39
NVFP4	4

Can NVIDIA H200 PCIe 141GB run Qwen3.5 122B A10B?

Memory breakdown