Question 1

Can GTX 1650 4GB run stablelm 2 zephyr 1.6b?

Accepted Answer

Yes, GTX 1650 4GB can run stablelm 2 zephyr 1.6b with a C grade (Tight fit). Expected decode speed: 92.2 tok/s.

Question 2

How much VRAM does stablelm 2 zephyr 1.6b need?

Accepted Answer

stablelm 2 zephyr 1.6b (1.600000023841858B parameters) requires approximately 3.4 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for stablelm 2 zephyr 1.6b?

Accepted Answer

The recommended quantization for stablelm 2 zephyr 1.6b is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	C	Tight fit	92.2 tok/s	3056 ms	38K
Chat	C	Tight fit	92.2 tok/s	1146 ms	9K
Coding	C	Tight fit	92.2 tok/s	2101 ms	19K
RAG	C	Tight fit	92.2 tok/s	3819 ms	38K
Reasoning	C	Tight fit	92.2 tok/s	2483 ms	19K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	0.6 GB	Low	D32
Q3_K_S	3	0.8 GB	Low	D33
NVFP4	4

Can GTX 1650 4GB run stablelm 2 zephyr 1.6b?

Memory breakdown