Can OLMo 2 13B run on RTX A4000 16GB?

YES — Runs Great

A81Great

Estimated from fit model

OLMo 2 13B needs ~12.9 GB VRAM. RTX A4000 16GB has 16.0 GB. With Q4_K_M quantization, expect ~43 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: LowStack: 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) — 12.9 GB, 42.7 tok/s, Runs well

12.9 GB required16.0 GB available

81% VRAM used

Fit status

Runs well

Decode

42.7 tok/s

TTFT

4533 ms

Safe context

33K

Memory

12.9 GB / 16.0 GB

Memory breakdown

Weights7.9 GB

KV Cache2.4 GB

Runtime0.9 GB

Headroom1.6 GB

See how fast it feels

See how fast it feelsOLMo 2 13B on RTX A4000 16GB
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: 42.7 tok/s decode · 4.5s TTFT (warm) · 107 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	42.7 tok/s	2473 ms	33K
Coding	A	Runs well	42.7 tok/s	4533 ms	33K
Agentic Coding	A	Runs with offload	42.7 tok/s	6593 ms	33K
Reasoning	A	Runs well	42.7 tok/s	5357 ms	33K
RAG	A	Runs with offload	42.7 tok/s	8242 ms	33K

Quantization options

How OLMo 2 13B (13B params) fits at each quantization level on RTX A4000 16GB (16.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	5.1 GB	Low	A76
Q3_K_S	3	6.4 GB	Low	A77
NVFP4	4	7.3 GB	Medium	A78
Q4_K_M	4	7.9 GB	Medium	A79
Q5_K_M	5	9.4 GB	High	A78
Q6_KBest for your GPU	6	10.7 GB	High	A78
Q8_0	8	13.9 GB	Very High	F0
F16	16	26.7 GB	Maximum	F0

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 RTX A4000 16GB can run

Model	Params	Grade	Decode
Qwen 3 14B	14B	S	39.7 tok/s
Phi-4-reasoning-plus 14B	14.7B	S	37.6 tok/s
GPT-OSS 20B	21B	A	36.3 tok/s
Ministral 3 14B	14B	S	39.5 tok/s
Codestral 2 25.08	22B	A	12.6 tok/s

Frequently asked questions

Can RTX A4000 16GB run OLMo 2 13B?

Yes, RTX A4000 16GB can run OLMo 2 13B with a A grade (Runs well). Expected decode speed: 42.7 tok/s.

How much VRAM does OLMo 2 13B need?

OLMo 2 13B (13B parameters) requires approximately 12.9 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 RTX A4000 16GB?

On RTX A4000 16GB, OLMo 2 13B achieves approximately 42.7 tokens per second decode speed with a time-to-first-token of 4533ms using Q4_K_M quantization.

Can RTX A4000 16GB run OLMo 2 13B for coding?

For coding workloads, OLMo 2 13B on RTX A4000 16GB receives a A grade with 42.7 tok/s and 33K context.

What context window can OLMo 2 13B use on RTX A4000 16GB?

On RTX A4000 16GB, 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 RTX A4000 16GB See all hardware for OLMo 2 13B

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