Question 1

Can RTX 5080 16GB run gemma 3 12b it?

Accepted Answer

Yes, RTX 5080 16GB can run gemma 3 12b it with a B grade (Runs well). Expected decode speed: 94.4 tok/s.

Question 2

How much VRAM does gemma 3 12b it need?

Accepted Answer

gemma 3 12b it (12B parameters) requires approximately 12.0 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for gemma 3 12b it?

Accepted Answer

The recommended quantization for gemma 3 12b it is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	C	Tight fit	85.2 tok/s	3303 ms	37K
Chat	B	Runs well	85.2 tok/s	1239 ms	12K
Coding	B	Runs well	94.4 tok/s	2050 ms	21K
RAG	C	Tight fit	85.2 tok/s	4129 ms	37K
Reasoning	B	Runs well	85.2 tok/s	2684 ms	21K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	4.7 GB	Low	D36
Q3_K_S	3	5.9 GB	Low	D37
NVFP4	4

Can RTX 5080 16GB run gemma 3 12b it?

Memory breakdown