Question 1

Can Radeon RX 6850M XT 12GB run gemma 3 4b it?

Accepted Answer

Yes, Radeon RX 6850M XT 12GB can run gemma 3 4b it with a C grade (Runs well). Expected decode speed: 127.5 tok/s.

Question 2

How much VRAM does gemma 3 4b it need?

Accepted Answer

gemma 3 4b it (4B parameters) requires approximately 5.6 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for gemma 3 4b it?

Accepted Answer

The recommended quantization for gemma 3 4b it is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	C	Runs well	99.1 tok/s	2840 ms	63K
Chat	C	Runs well	99.1 tok/s	1065 ms	17K
Coding	C	Runs well	127.5 tok/s	1519 ms	34K
RAG	C	Runs well	99.1 tok/s	3550 ms	63K
Reasoning	C	Runs well	99.1 tok/s	2308 ms	34K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	1.6 GB	Low	D32
Q3_K_S	3	2.0 GB	Low	D33
NVFP4	4

Can Radeon RX 6850M XT 12GB run gemma 3 4b it?

Memory breakdown