Can OLMo 2 13B run on NVIDIA A40 48GB?

YES — Runs Great

A75Great

Estimated from fit model

OLMo 2 13B needs ~16.1 GB VRAM. NVIDIA A40 48GB has 48.0 GB. With Q4_K_M quantization, expect ~74 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: MediumStack: 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) — 16.1 GB, 73.9 tok/s, Runs well

16.1 GB required48.0 GB available

34% VRAM used

Fit status

Runs well

Decode

73.9 tok/s

TTFT

2618 ms

Safe context

33K

Memory

16.1 GB / 48.0 GB

Memory breakdown

Weights7.9 GB

KV Cache2.4 GB

Runtime0.9 GB

Headroom4.8 GB

See how fast it feels

See how fast it feelsOLMo 2 13B on NVIDIA A40 48GB
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: 73.9 tok/s decode · 2.6s TTFT (warm) · 185 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	73.9 tok/s	1428 ms	33K
Coding	A	Runs well	73.9 tok/s	2618 ms	33K
Agentic Coding	A	Runs well	73.9 tok/s	3809 ms	33K
Reasoning	A	Runs well	73.9 tok/s	3095 ms	33K
RAG	A	Runs well	73.9 tok/s	4761 ms	33K

Quantization options

How OLMo 2 13B (13B params) fits at each quantization level on NVIDIA A40 48GB (48.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	5.1 GB	Low	B69
Q3_K_S	3	6.4 GB	Low	B69
NVFP4	4	7.3 GB	Medium	B69
Q4_K_M	4	7.9 GB	Medium	B69
Q5_K_M	5	9.4 GB	High	B70
Q6_K	6	10.7 GB	High	B70
Q8_0	8	13.9 GB	Very High	A71
F16Best for your GPU	16	26.7 GB	Maximum	A75

Get started

Copy-paste commands to run OLMo 2 13B on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
  --hf-repo "allenai/OLMo-2-13B-Instruct" \
  --hf-file "OLMo-2-13B-Instruct-Q4_K_M.gguf" \
  -c 4096 -ngl 99

Your hardware

More models your NVIDIA A40 48GB can run

Model	Params	Grade	Decode
Qwen3-Coder 30B A3B Instruct	30.5B	S	82.1 tok/s
Qwen 3.5 27B	27B	S	35.6 tok/s
Qwen 3.6 27B	27B	S	27.1 tok/s
Qwen 3.6 35B A3B	35B	S	69 tok/s
Qwen3-VL 30B A3B Instruct	30B	S	84.9 tok/s

Frequently asked questions

Can NVIDIA A40 48GB run OLMo 2 13B?

Yes, NVIDIA A40 48GB can run OLMo 2 13B with a A grade (Runs well). Expected decode speed: 73.9 tok/s.

How much VRAM does OLMo 2 13B need?

OLMo 2 13B (13B parameters) requires approximately 16.1 GB of memory with Q4_K_M quantization.

What is the best quantization for OLMo 2 13B?

The recommended quantization for OLMo 2 13B is Q4_K_M, which balances quality and memory efficiency.

What speed will OLMo 2 13B run at on NVIDIA A40 48GB?

On NVIDIA A40 48GB, OLMo 2 13B achieves approximately 73.9 tokens per second decode speed with a time-to-first-token of 2618ms using Q4_K_M quantization.

Can NVIDIA A40 48GB run OLMo 2 13B for coding?

For coding workloads, OLMo 2 13B on NVIDIA A40 48GB receives a A grade with 73.9 tok/s and 33K context.

What context window can OLMo 2 13B use on NVIDIA A40 48GB?

On NVIDIA A40 48GB, OLMo 2 13B can safely use up to 33K tokens of context. The model's official context limit is 33K, but available memory constrains the safe maximum.

See all results for NVIDIA A40 48GB See all hardware for OLMo 2 13B

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