Question 1

Can NVIDIA L40S 48GB run Yi 1.5 34B?

Accepted Answer

Yes, NVIDIA L40S 48GB can run Yi 1.5 34B with a C grade (Runs well). Expected decode speed: 32.5 tok/s.

Question 2

How much VRAM does Yi 1.5 34B need?

Accepted Answer

Yi 1.5 34B (34B parameters) requires approximately 32.1 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for Yi 1.5 34B?

Accepted Answer

The recommended quantization for Yi 1.5 34B is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	C	Runs well	32.5 tok/s	8666 ms	4K
Chat	C	Runs well	32.5 tok/s	3250 ms	4K
Coding	C	Runs well	32.5 tok/s	5958 ms	4K
RAG	C	Runs well	32.5 tok/s	10833 ms	4K
Reasoning	C	Runs well	32.5 tok/s	7041 ms	4K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	13.3 GB	Low	D35
Q3_K_S	3	16.7 GB	Low	D37
NVFP4	4

Can NVIDIA L40S 48GB run Yi 1.5 34B?

Memory breakdown