Can the RTX 5080 Mobile run Gemma 4 12B?
Yes. Gemma 4 12B fits the RTX 5080 Mobile's 16 GB at Q4_K_M (about 8.8 GB needed), running at an estimated 73 tok/s. There's room for up to Q8_0 if you want higher quality.
Every quantization
Gemma 4 12B (12B) on 16 GB
| Quant | Weights | Needs | Fit | Est. speed |
|---|---|---|---|---|
| Q4_K_M | 7 GB | 8.8 GB | Fits easily | ~73 tok/s |
| Q5_K_M | 9 GB | 10.8 GB | Fits | ~57 tok/s |
| Q8_0 | 13 GB | 14.8 GB | Tight | ~40 tok/s |
| FP16 | 24 GB | 25.8 GB | Too big | - |
Estimates. Needs = weights + 1.8 GB for KV cache and runtime at modest context. Speed is single-stream decode scaled from the RTX 5080 Mobile's 896 GB/s bandwidth (Estimated from memory bandwidth (llama.cpp decode)). Long contexts need more memory and run slower.
Run it
Copy, paste, go
llama-server -hf google/gemma-4-12B-it-qat-q4_0-gguf -ngl 99Ollama pulls a Q4 build by default. Pick a larger quant only if the table above says it fits. Full Gemma 4 12B details →
Compare
Same model, other hardware - and other models on this card
Gemma 4 12B on other hardware
- RTX 5090~147 tok/s
- RTX 5090 D~147 tok/s
- RTX 6000D~129 tok/s
- RTX 4090~89 tok/s
- Radeon RX 7900 XTX~79 tok/s
- RTX 5080~79 tok/s
- RTX 3090~78 tok/s
- RTX 3080 Ti~75 tok/s
Also runs on the RTX 5080 Mobile
- Qwen2.5-Coder-14B-Instruct~57 tok/s
- Qwen3 14B~64 tok/s
- Phi-4~60 tok/s
- Qwen3.5 9B~86 tok/s
- Llama 3.1 8B~93 tok/s
- Mistral-7B-Instruct-v0.2~129 tok/s
- Qwen3.5 4B~171 tok/s
- Qwen3-4B-Instruct-2507~257 tok/s
Frequently asked
Quick answers
Can the GeForce RTX 5080 Mobile run Gemma 4 12B?
Yes. Gemma 4 12B fits the RTX 5080 Mobile's 16 GB at Q4_K_M (about 8.8 GB needed), running at an estimated 73 tok/s. There's room for up to Q8_0 if you want higher quality.
How much VRAM does Gemma 4 12B need?
About 7 GB of weights at Q4_K_M, 13 GB at Q8_0 and 24 GB at FP16. Add roughly 1.8 GB for the KV cache and runtime at modest context lengths.
How fast is Gemma 4 12B on the RTX 5080 Mobile?
Roughly 73 tokens per second at Q4_K_M (single user, llama.cpp-style decode). This is an estimate from the RTX 5080 Mobile's 896 GB/s memory bandwidth.