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text model · Gemma · Windows

Can I run Gemma 2 9B on 16GB RAM Laptop (CPU/iGPU only)?

Compatibility verdict VRAM threshold engine
Yes, it runs slow on this hardware ~8 tok/s est.

Yes. Gemma 2 9B runs on 16GB RAM Laptop (CPU/iGPU only) at Q4_K_M (~7.3 GB of ~12 GB usable).

Needs ~7.3 GB Device usable ~12 GB

Runs at Q4_K_M using ~7.3 GB of ~12 GB usable. You have room for Q8_0 for higher quality.

That figure is at a 4k context and moves about ±15% as context length changes. 16GB RAM Laptop (CPU/iGPU only) leaves ~4.7 GB of headroom, room to step up to Q8_0 for higher quality.

Q4_K_M needed
~7.3 GB
Usable on device
~12 GB
Device memory
16 GB
Best quant
Q4_K_M
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Which quant fits

Quant ladder vs ~12 GB usable
Q2_K
~5.3 GB
Q3_K_M
~5.9 GB
Q4_K_M
~7.3 GB
Q5_K_M
~7.9 GB
Q6_K
~8.9 GB
Q8_0
~11.3 GB
FP16
~19.5 GB
The line marks 16GB RAM Laptop (CPU/iGPU only)'s ~12 GB budget; rungs past it are too large.

Running cost · estimate

Power & economics est.
Power draw
~28 W
Electricity / 1M tokens
~$0.15
Pays for itself after
~2,143M tok

At ~$0.15/kWh and the estimated ~8 tok/s, a million generated tokens costs about $0.15 in electricity. Versus a hosted API at ~$0.5 per million tokens, the ~$750 16GB RAM Laptop (CPU/iGPU only) pays for itself after roughly 2,143 million tokens, so local hardware is mostly a fixed cost, not a per-token one. TDP is the peak draw, so this is an upper bound. Assumptions.

Run it

Install commands Windows

Pick your tool. All 3 load the same Q4_K_M weights.

Ollama
$ ollama run gemma2:9b
llama.cpp
$ llama-cli -hf bartowski/gemma-2-9b-it-GGUF:Q4_K_M
LM Studio
$ lms get bartowski/gemma-2-9b-it-GGUF
Model Gemma
Parameters
9B
Q4_K_M size
5.76 GB
Q8_0 size
9.83 GB
Context
8k
Ollama tag
gemma2:9b
Full Gemma 2 9B requirements →
Device Windows
Memory
16 GB ram
Usable for weights
~12 GB
Power draw
~28 W
Best runtime
Ollama (llama.cpp backend)
Best models for 16GB RAM Laptop (CPU/iGPU only) →

You could also run

Run Gemma 2 9B on other hardware

FAQ

Can 16GB RAM Laptop (CPU/iGPU only) run Gemma 2 9B?

Yes. Gemma 2 9B runs on 16GB RAM Laptop (CPU/iGPU only) at Q4_K_M (~7.3 GB of ~12 GB usable).

How much memory does Gemma 2 9B need?

16GB RAM Laptop (CPU/iGPU only) has room to spare. At Q4_K_M the weights are ~5.76 GB; with KV cache and runtime overhead, budget ~7.3 GB at a 4k context.

What is the best tool to run Gemma 2 9B on Windows?

LM Studio for a simple setup; Ollama (CUDA) for the most speed. AMD GPUs run via Vulkan/ROCm at roughly half CUDA throughput. NVIDIA is the smooth path on Windows.

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Sources

Weights are measured from GGUF files; KV cache and overhead are computed, so totals can vary ~15% with context and runtime. Any tok/s is a bandwidth estimate. See methodology.