Question 1

Can RTX 5090 32GB run Qwen 3 30B A3B?

Accepted Answer

Yes, RTX 5090 32GB can run Qwen 3 30B A3B with a B grade (Runs well). Expected decode speed: 179.4 tok/s.

Question 2

How much VRAM does Qwen 3 30B A3B need?

Accepted Answer

Qwen 3 30B A3B (30.5B parameters) requires approximately 23.8 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for Qwen 3 30B A3B?

Accepted Answer

The recommended quantization for Qwen 3 30B A3B is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	B	Runs well	166.9 tok/s	1687 ms	43K
Chat	B	Runs well	166.9 tok/s	633 ms	11K
Coding	B	Runs well	179.4 tok/s	1079 ms	22K
RAG	B	Runs well	166.9 tok/s	2108 ms	43K
Reasoning	B	Runs well	166.9 tok/s	1371 ms	22K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	11.9 GB	Low	D37
Q3_K_S	3	14.9 GB	Low	D39
NVFP4	4

Can RTX 5090 32GB run Qwen 3 30B A3B?

Memory breakdown