Question 1

Can RTX 5080 16GB run WizardLM 13B?

Accepted Answer

Yes, RTX 5080 16GB can run WizardLM 13B with a B grade (Runs well). Expected decode speed: 87.2 tok/s.

Question 2

How much VRAM does WizardLM 13B need?

Accepted Answer

WizardLM 13B (13B parameters) requires approximately 12.8 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for WizardLM 13B?

Accepted Answer

The recommended quantization for WizardLM 13B is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	C	Tight fit	78.7 tok/s	3579 ms	8K
Chat	B	Runs well	78.7 tok/s	1342 ms	8K
Coding	B	Runs well	87.2 tok/s	2221 ms	8K
RAG	C	Tight fit	78.7 tok/s	4473 ms	8K
Reasoning	B	Runs well	78.7 tok/s	2908 ms	8K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	5.1 GB	Low	D35
Q3_K_S	3	6.4 GB	Low	D37
NVFP4	4

Can RTX 5080 16GB run WizardLM 13B?

Memory breakdown