Can Command R 35B run on AMD Instinct MI250X 128GB?

YES — Runs Great

A74Great

Estimated from fit model

Command R 35B needs ~37.5 GB VRAM. AMD Instinct MI250X 128GB has 128.0 GB. With Q4_K_M quantization, expect ~127 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: StandardBottleneck: 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

Q4_K_M (Medium quality) — 37.5 GB, 127.1 tok/s, Runs well

37.5 GB required128.0 GB available

29% VRAM used

Fit status

Runs well

Decode

127.1 tok/s

TTFT

1523 ms

Safe context

131K

Memory

37.5 GB / 128.0 GB

Memory breakdown

Weights21.3 GB

KV Cache2.4 GB

Runtime0.9 GB

Headroom12.8 GB

See how fast it feels

See how fast it feelsCommand R 35B on AMD Instinct MI250X 128GB
1st promptCold start — includes initialization
>What is local AI inference?
Local AI inference means running an AI language model directly on your own hardware — your laptop, desktop, or server — instead of sending requests to a remote cloud API.

When you run inference locally the model weights are loaded into your GPU or unified memory. Each token you generate requires reading those weights from memory, so memory bandwidth is the main bottleneck for decode speed.

Key benefits of running locally:
  - Full privacy: your prompts never leave your machine
  - No per-token cost or rate limits
  - Works offline once the model is downloaded
  - Latency depends only on your hardware
2nd promptWarm — model ready, no init overhead
>How much VRAM do I need?
It depends on the model size and quantization level. A rough rule of thumb:

  Model size     Q4 (4-bit)    Q8 (8-bit)    FP16
  7B params      ~4.3 GB       ~7.5 GB       ~14 GB
  13B params     ~7.9 GB       ~13.9 GB      ~26 GB
  70B params     ~42.7 GB      ~74.9 GB      ~140 GB

Most people use 4-bit quantization (Q4_K_M) which gives 90-95% of full quality at a fraction of the memory. A 24 GB GPU can comfortably run most 7B-13B models.
Estimated: 127.1 tok/s decode · 1.5s TTFT (warm) · 318 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	A	Runs well	127.1 tok/s	831 ms	131K
Coding	A	Runs well	127.1 tok/s	1523 ms	131K
Agentic Coding	A	Runs well	127.1 tok/s	2215 ms	131K
Reasoning	A	Runs well	127.1 tok/s	1800 ms	131K
RAG	A	Runs well	127.1 tok/s	2769 ms	131K

Inference speed

Command R 35B inference speed — tokens per second by GPU & Mac

Estimated decode speed (tokens/sec) for Command R 35B at Q4_K_M across popular GPUs and Apple Silicon, using the fastest local runtime per device. Fastest is RTX 5090 32GB at ~40 tok/s. Speed is memory-bandwidth bound, so cards that fit the whole model in VRAM run far faster than ones that offload to system RAM.

GPU / Mac	Memory	Quant	Speed (tok/s)	Fits?
RTX 5090 32GB	32 GB	Q4_K_M	39.6	Tight
MacBook Pro M4 Max 128GB	128 GB	Q4_K_M	30.6	Fits
MacBook Pro M4 Max 64GB	64 GB	Q4_K_M	30.6	Fits
Mac Studio M3 Ultra 256GB	256 GB	Q4_K_M	28.4	Fits
Mac Studio M2 Ultra 128GB	128 GB	Q4_K_M	23.6	Fits
Mac Studio M1 Ultra 128GB	128 GB	Q4_K_M	22.4	Fits
RX 7900 XTX 24GB	24 GB	Q4_K_M	20.5	Heavy offload
MacBook Pro M4 Pro 48GB	48 GB	Q4_K_M	19.3	Tight
RTX 4090 24GB	24 GB	Q4_K_M	13.1	Heavy offload
MacBook Pro M3 Max 64GB	64 GB	Q4_K_M	12.2	Fits
RTX 3090 24GB	24 GB	Q4_K_M	12.0	Heavy offload
MacBook Pro M1 Max 64GB	64 GB	Q4_K_M	11.2	Fits
RTX 4080 Super 16GB	16 GB	Q4_K_M	4.7	Too big
RTX 4070 12GB	12 GB	Q4_K_M	2.0	Too big
RTX 3060 12GB	12 GB	Q4_K_M	2.0	Too big
RTX 4060 8GB	8 GB	Q4_K_M	2.0	Too big

Estimates for single-stream decoding at Q4_K_M; real tokens/sec varies with prompt length, context, batch size, and runtime build. Prompt processing (prefill) is faster than the decode figures shown here.

Quantization options

How Command R 35B (35B params) fits at each quantization level on AMD Instinct MI250X 128GB (128.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	13.7 GB	Low	B65
Q3_K_S	3	17.2 GB	Low	B65
NVFP4	4	19.6 GB	Medium	B65
Q4_K_M	4	21.3 GB	Medium	B66
Q5_K_M	5	25.2 GB	High	B66
Q6_K	6	28.7 GB	High	B67
Q8_0	8	37.5 GB	Very High	B68
F16Best for your GPU	16	71.8 GB	Maximum	A74

Get started

Copy-paste commands to run Command R 35B on your machine.

Run

ollama run command-r

Your hardware

More models your AMD Instinct MI250X 128GB can run

Model	Params	Grade	Decode
Devstral 2 123B Instruct	123B	S	36.2 tok/s
Qwen 3.5 122B A10B	122B	S	100.3 tok/s
Mistral Small 4 119B	119B	S	108.8 tok/s
GPT-OSS 120B	117B	S	38 tok/s
Command A 111B	111B	S	40.2 tok/s

Frequently asked questions

Can AMD Instinct MI250X 128GB run Command R 35B?

Yes, AMD Instinct MI250X 128GB can run Command R 35B with a A grade (Runs well). Expected decode speed: 127.1 tok/s.

How much VRAM does Command R 35B need?

Command R 35B (35B parameters) requires approximately 37.5 GB of memory with Q4_K_M quantization.

What is the best quantization for Command R 35B?

The recommended quantization for Command R 35B is Q4_K_M, which balances quality and memory efficiency.

What speed will Command R 35B run at on AMD Instinct MI250X 128GB?

On AMD Instinct MI250X 128GB, Command R 35B achieves approximately 127.1 tokens per second decode speed with a time-to-first-token of 1523ms using Q4_K_M quantization.

Can AMD Instinct MI250X 128GB run Command R 35B for coding?

For coding workloads, Command R 35B on AMD Instinct MI250X 128GB receives a A grade with 127.1 tok/s and 131K context.

What context window can Command R 35B use on AMD Instinct MI250X 128GB?

On AMD Instinct MI250X 128GB, Command R 35B 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 MI250X 128GB See all hardware for Command R 35B

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