Question 1

Can Radeon RX 6850M XT 12GB run Qwen2.5 3B Instruct?

Accepted Answer

Yes, Radeon RX 6850M XT 12GB can run Qwen2.5 3B Instruct with a C grade (Runs well). Expected decode speed: 170.0 tok/s.

Question 2

How much VRAM does Qwen2.5 3B Instruct need?

Accepted Answer

Qwen2.5 3B Instruct (3B parameters) requires approximately 5.0 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for Qwen2.5 3B Instruct?

Accepted Answer

The recommended quantization for Qwen2.5 3B Instruct is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	C	Runs well	132.2 tok/s	2130 ms	74K
Chat	C	Runs well	132.2 tok/s	799 ms	19K
Coding	C	Runs well	170.0 tok/s	1139 ms	38K
RAG	C	Runs well	132.2 tok/s	2663 ms	74K
Reasoning	C	Runs well	132.2 tok/s	1731 ms	38K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	1.2 GB	Low	D32
Q3_K_S	3	1.5 GB	Low	D32
NVFP4	4

Can Radeon RX 6850M XT 12GB run Qwen2.5 3B Instruct?

Memory breakdown