Question 1

Can Intel Arc B580 12GB run DeepSeek R1 1.5B?

Accepted Answer

Yes, Intel Arc B580 12GB can run DeepSeek R1 1.5B with a C grade (Runs well). Expected decode speed: 328.3 tok/s.

Question 2

How much VRAM does DeepSeek R1 1.5B need?

Accepted Answer

DeepSeek R1 1.5B (1.5B parameters) requires approximately 4.1 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for DeepSeek R1 1.5B?

Accepted Answer

The recommended quantization for DeepSeek R1 1.5B is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	C	Runs well	328.3 tok/s	858 ms	33K
Chat	C	Runs well	328.3 tok/s	350 ms	23K
Coding	C	Runs well	328.3 tok/s	590 ms	33K
RAG	C	Runs well	328.3 tok/s	1072 ms	33K
Reasoning	C	Runs well	328.3 tok/s	697 ms	33K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	0.6 GB	Low	D29
Q3_K_S	3	0.7 GB	Low	D30
NVFP4	4

Can Intel Arc B580 12GB run DeepSeek R1 1.5B?

Memory breakdown