Question 1

Can RTX 4090 24GB run StarCoder 15B?

Accepted Answer

Yes, RTX 4090 24GB can run StarCoder 15B with a B grade (Runs well). Expected decode speed: 68.5 tok/s.

Question 2

How much VRAM does StarCoder 15B need?

Accepted Answer

StarCoder 15B (15B parameters) requires approximately 16.7 GB of memory with Q5_K_M quantization.

Question 3

What is the best quantization for StarCoder 15B?

Accepted Answer

The recommended quantization for StarCoder 15B is Q5_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	B	Runs well	68.5 tok/s	4108 ms	8K
Chat	B	Runs well	68.5 tok/s	1541 ms	8K
Coding	B	Runs well	68.5 tok/s	2824 ms	8K
RAG	B	Runs well	68.5 tok/s	5135 ms	8K
Reasoning	B	Runs well	68.5 tok/s	3338 ms	8K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	5.9 GB	Low	D35
Q3_K_S	3	7.4 GB	Low	D36
NVFP4	4

Can RTX 4090 24GB run StarCoder 15B?

Memory breakdown