Question 1

Can RX 7900 XTX 24GB run StarCoder2 15B?

Accepted Answer

Yes, RX 7900 XTX 24GB can run StarCoder2 15B with a B grade (Runs well). Expected decode speed: 65.3 tok/s.

Question 2

How much VRAM does StarCoder2 15B need?

Accepted Answer

StarCoder2 15B (15B parameters) requires approximately 16.7 GB of memory with Q5_K_M quantization.

Question 3

What is the best quantization for StarCoder2 15B?

Accepted Answer

The recommended quantization for StarCoder2 15B is Q5_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	B	Runs well	65.3 tok/s	4314 ms	16K
Chat	C	Runs well	65.3 tok/s	1618 ms	12K
Coding	B	Runs well	65.3 tok/s	2966 ms	16K
RAG	B	Runs well	65.3 tok/s	5392 ms	16K
Reasoning	B	Runs well	65.3 tok/s	3505 ms	16K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	5.9 GB	Low	D34
Q3_K_S	3	7.4 GB	Low	D36
NVFP4	4

Can RX 7900 XTX 24GB run StarCoder2 15B?

Memory breakdown