Question 1

Can GTX 1660 Ti 6GB run Qwen2.5 3B Instruct?

Accepted Answer

Yes, GTX 1660 Ti 6GB can run Qwen2.5 3B Instruct with a B grade (Runs well). Expected decode speed: 113.3 tok/s.

Question 2

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

Accepted Answer

Qwen2.5 3B Instruct (3B parameters) requires approximately 4.4 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	B	Runs well	113.3 tok/s	2485 ms	42K
Chat	B	Runs well	113.3 tok/s	932 ms	11K
Coding	B	Runs well	113.3 tok/s	1709 ms	22K
RAG	B	Runs well	113.3 tok/s	3106 ms	42K
Reasoning	B	Runs well	113.3 tok/s	2019 ms	22K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	1.2 GB	Low	D34
Q3_K_S	3	1.5 GB	Low	D35
NVFP4	4

Can GTX 1660 Ti 6GB run Qwen2.5 3B Instruct?

Memory breakdown