Question 1

Can RTX 4070 12GB run Llama 2 7B Chat?

Accepted Answer

Yes, RTX 4070 12GB can run Llama 2 7B Chat with a B grade (Runs well). Expected decode speed: 85.0 tok/s.

Question 2

How much VRAM does Llama 2 7B Chat need?

Accepted Answer

Llama 2 7B Chat (7B parameters) requires approximately 7.8 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for Llama 2 7B Chat?

Accepted Answer

The recommended quantization for Llama 2 7B Chat is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	B	Runs well	88.5 tok/s	3181 ms	43K
Chat	B	Runs well	88.5 tok/s	1193 ms	13K
Coding	B	Runs well	85.0 tok/s	2278 ms	25K
RAG	B	Runs well	88.5 tok/s	3976 ms	43K
Reasoning	B	Runs well	88.5 tok/s	2585 ms	25K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	2.7 GB	Low	D34
Q3_K_S	3	3.4 GB	Low	D36
NVFP4	4

Can RTX 4070 12GB run Llama 2 7B Chat?

Memory breakdown