Question 1

Can Radeon RX 6850M XT 12GB run Qwen3-Coder 30B A3B Instruct?

Accepted Answer

No, Qwen3-Coder 30B A3B Instruct requires more memory than Radeon RX 6850M XT 12GB provides.

Question 2

How much VRAM does Qwen3-Coder 30B A3B Instruct need?

Accepted Answer

Qwen3-Coder 30B A3B Instruct (30.5B parameters) requires approximately 21.8 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for Qwen3-Coder 30B A3B Instruct?

Accepted Answer

The recommended quantization for Qwen3-Coder 30B A3B Instruct is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	F	Too heavy	33.6 tok/s	8372 ms	17K
Chat	F	Too heavy	33.6 tok/s	3139 ms	4K
Coding	F	Too heavy	43.2 tok/s	4476 ms	9K
RAG	F	Too heavy	33.6 tok/s	10464 ms	17K
Reasoning	F	Too heavy	33.6 tok/s	6802 ms	9K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	11.9 GB	Low	C45
Q3_K_S	3	14.9 GB	Low	F0
NVFP4	4

Can Radeon RX 6850M XT 12GB run Qwen3-Coder 30B A3B Instruct?

Memory breakdown