Can Cerebras-GPT 13B run on AMD Instinct MI250 128GB?

YES — Runs Great

B64Good

Estimated from fit model

Cerebras-GPT 13B needs ~33.1 GB VRAM. AMD Instinct MI250 128GB has 128.0 GB. With Q5_K_M quantization, expect ~182 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: HighStack: BasicBottleneck: Balanced

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q5_K_M (High quality) — 33.1 GB, 182.0 tok/s, Runs well

33.1 GB required128.0 GB available

26% VRAM used

Fit status

Runs well

Decode

182.0 tok/s

TTFT

1064 ms

Safe context

131K

Memory

33.1 GB / 128.0 GB

Memory breakdown

Weights9.4 GB

KV Cache9.8 GB

Runtime1.2 GB

Headroom12.8 GB

See how fast it feels

See how fast it feelsCerebras-GPT 13B on AMD Instinct MI250 128GB
1st promptCold start — includes initialization
>Solve: If a train travels at 60 mph for 2.5 hours, how far does it go?
Let me work through this step by step.

Given information:
  - Speed = 60 mph (miles per hour)
  - Time  = 2.5 hours

Formula: Distance = Speed x Time

Calculation:
  Distance = 60 mph x 2.5 h
           = 150 miles

The train travels 150 miles.

Double-check: at 60 mph the train covers 60 miles each hour. In half an hour it covers 30 miles. So in 2.5 hours: 60 + 60 + 30 = 150 miles. Confirmed.
2nd promptWarm — model ready, no init overhead
>What if the train stops for 20 minutes halfway?
The stop doesn't change the total distance covered while moving, but it affects total trip time.

Breakdown:
  - First half: 1.25 hours at 60 mph = 75 miles
  - Stop: 20 minutes (no distance)
  - Second half: 1.25 hours at 60 mph = 75 miles

Total distance: 150 miles (same)
Total time: 2.5 h + 0.33 h = 2.83 hours
Average speed: 150 / 2.83 = 53 mph

The distance stays the same but average speed drops to 53 mph because of the stop.
Estimated: 182.0 tok/s decode · 1.1s TTFT (warm) · 455 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

No major red flags

This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.

Best improvement path

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	B	Runs well	182.0 tok/s	580 ms	131K
Coding	B	Runs well	182.0 tok/s	1064 ms	131K
Agentic Coding	B	Runs well	182.0 tok/s	1547 ms	131K
Reasoning	B	Runs well	182.0 tok/s	1257 ms	131K
RAG	B	Runs well	182.0 tok/s	1934 ms	131K

Quantization options

How Cerebras-GPT 13B (13B params) fits at each quantization level on AMD Instinct MI250 128GB (128.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	5.1 GB	Low	C54
Q3_K_S	3	6.4 GB	Low	C54
NVFP4	4	7.3 GB	Medium	C54
Q4_K_M	4	7.9 GB	Medium	C54
Q5_K_M	5	9.4 GB	High	C54
Q6_K	6	10.7 GB	High	C54
Q8_0	8	13.9 GB	Very High	C55
F16Best for your GPU	16	26.7 GB	Maximum	B56

Get started

Copy-paste commands to run Cerebras-GPT 13B on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
  --hf-repo "cerebras/Cerebras-GPT-13B" \
  --hf-file "Cerebras-GPT-13B-Q5_K_M.gguf" \
  -c 4096 -ngl 99

Frequently asked questions

Can AMD Instinct MI250 128GB run Cerebras-GPT 13B?

Yes, AMD Instinct MI250 128GB can run Cerebras-GPT 13B with a B grade (Runs well). Expected decode speed: 182.0 tok/s.

How much VRAM does Cerebras-GPT 13B need?

Cerebras-GPT 13B (13B parameters) requires approximately 33.1 GB of memory with Q5_K_M quantization.

What is the best quantization for Cerebras-GPT 13B?

The recommended quantization for Cerebras-GPT 13B is Q5_K_M, which balances quality and memory efficiency.

What speed will Cerebras-GPT 13B run at on AMD Instinct MI250 128GB?

On AMD Instinct MI250 128GB, Cerebras-GPT 13B achieves approximately 182.0 tokens per second decode speed with a time-to-first-token of 1064ms using Q5_K_M quantization.

Can AMD Instinct MI250 128GB run Cerebras-GPT 13B for coding?

For coding workloads, Cerebras-GPT 13B on AMD Instinct MI250 128GB receives a B grade with 182.0 tok/s and 131K context.

What context window can Cerebras-GPT 13B use on AMD Instinct MI250 128GB?

On AMD Instinct MI250 128GB, Cerebras-GPT 13B can safely use up to 131K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

See all results for AMD Instinct MI250 128GB See all hardware for Cerebras-GPT 13B

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