Can Gemma 2 9B run on NVIDIA A40 48GB?

YES — Runs Great

B64Good

Estimated from fit model

Gemma 2 9B needs ~16.6 GB VRAM. NVIDIA A40 48GB has 48.0 GB. With Q4_K_M quantization, expect ~104 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: MediumStack: 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

Q4_K_M (Medium quality) — 16.6 GB, 103.8 tok/s, Runs well

16.6 GB required48.0 GB available

35% VRAM used

Fit status

Runs well

Decode

103.8 tok/s

TTFT

1865 ms

Safe context

Memory

16.6 GB / 48.0 GB

Memory breakdown

Weights5.5 GB

KV Cache5.1 GB

Runtime1.2 GB

Headroom4.8 GB

See how fast it feels

See how fast it feelsGemma 2 9B 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: 103.8 tok/s decode · 1.9s TTFT (warm) · 260 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	103.8 tok/s	1017 ms	8K
Coding	B	Runs well	103.8 tok/s	1865 ms	8K
Agentic Coding	B	Runs well	103.8 tok/s	2712 ms	8K
Reasoning	B	Runs well	103.8 tok/s	2204 ms	8K
RAG	B	Runs well	103.8 tok/s	3390 ms	8K

Quantization options

How Gemma 2 9B (9B params) fits at each quantization level on NVIDIA A40 48GB (48.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	3.5 GB	Low	B56
Q3_K_S	3	4.4 GB	Low	B56
NVFP4	4	5.0 GB	Medium	B56
Q4_K_M	4	5.5 GB	Medium	B56
Q5_K_M	5	6.5 GB	High	B56
Q6_K	6	7.4 GB	High	B57
Q8_0	8	9.6 GB	Very High	B57
F16Best for your GPU	16	18.5 GB	Maximum	B60

Get started

Copy-paste commands to run Gemma 2 9B on your machine.

Run

ollama run gemma2

Frequently asked questions

Can NVIDIA A40 48GB run Gemma 2 9B?

Yes, NVIDIA A40 48GB can run Gemma 2 9B with a B grade (Runs well). Expected decode speed: 103.8 tok/s.

How much VRAM does Gemma 2 9B need?

Gemma 2 9B (9B parameters) requires approximately 16.6 GB of memory with Q4_K_M quantization.

What is the best quantization for Gemma 2 9B?

The recommended quantization for Gemma 2 9B is Q4_K_M, which balances quality and memory efficiency.

What speed will Gemma 2 9B run at on NVIDIA A40 48GB?

On NVIDIA A40 48GB, Gemma 2 9B achieves approximately 103.8 tokens per second decode speed with a time-to-first-token of 1865ms using Q4_K_M quantization.

Can NVIDIA A40 48GB run Gemma 2 9B for coding?

For coding workloads, Gemma 2 9B on NVIDIA A40 48GB receives a B grade with 103.8 tok/s and 8K context.

What context window can Gemma 2 9B use on NVIDIA A40 48GB?

On NVIDIA A40 48GB, Gemma 2 9B can safely use up to 8K tokens of context. The model's official context limit is 8K, but available memory constrains the safe maximum.

See all results for NVIDIA A40 48GB See all hardware for Gemma 2 9B

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