Question 1

Can AMD Instinct MI300X 192GB run Qwen 2.5 72B?

Accepted Answer

Yes, AMD Instinct MI300X 192GB can run Qwen 2.5 72B with a C grade (Runs well). Expected decode speed: 86.9 tok/s.

Question 2

How much VRAM does Qwen 2.5 72B need?

Accepted Answer

Qwen 2.5 72B (72B parameters) requires approximately 75.6 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for Qwen 2.5 72B?

Accepted Answer

The recommended quantization for Qwen 2.5 72B is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	C	Runs well	94.1 tok/s	2992 ms	71K
Chat	C	Runs well	94.1 tok/s	1122 ms	22K
Coding	C	Runs well	86.9 tok/s	2228 ms	41K
RAG	C	Runs well	94.1 tok/s	3740 ms	71K
Reasoning	C	Runs well	94.1 tok/s	2431 ms	41K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	28.1 GB	Low	D33
Q3_K_S	3	35.3 GB	Low	D33
NVFP4	4

Can AMD Instinct MI300X 192GB run Qwen 2.5 72B?

Memory breakdown