Gemma 3 12B needs ~15.8 GB VRAM. RTX 4500 Ada 24GB has 24.0 GB. With Q4_K_M quantization, expect ~49 tok/s.
Operating mode
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.
Select quantization to explore
Fit status
Runs well
Decode
49.0 tok/s
TTFT
3955 ms
Safe context
43K
Memory
15.8 GB / 24.0 GB
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.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | A | Runs well | 49.0 tok/s | 2157 ms | 43K |
| Coding | A | Runs well | 49.0 tok/s | 3955 ms | 43K |
| Agentic Coding | A | Tight fit | 49.0 tok/s | 5752 ms | 43K |
| Reasoning | A | Runs well | 49.0 tok/s | 4674 ms | 43K |
| RAG | A | Tight fit | 49.0 tok/s | 7190 ms | 43K |
How Gemma 3 12B (12B params) fits at each quantization level on RTX 4500 Ada 24GB (24.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 4.7 GB | Low | A75 |
Q3_K_S | 3 | 5.9 GB | Low | A76 |
NVFP4 | 4 | 6.7 GB | Medium | A76 |
Q4_K_M | 4 | 7.3 GB | Medium | A76 |
Q5_K_M | 5 | 8.6 GB | High | A77 |
Q6_K | 6 | 9.8 GB | High | A78 |
Q8_0Best for your GPU | 8 | 12.8 GB | Very High | A80 |
F16 | 16 | 24.6 GB | Maximum | F0 |
Copy-paste commands to run Gemma 3 12B on your machine.
Run
ollama run gemma3:12bYour hardware
| Model | Params | Grade | Decode | Capabilities |
|---|---|---|---|---|
| 30.5B | S | 51.6 tok/s | ||
| 27B | S | 22.4 tok/s | ||
| 27B | S | 22.4 tok/s | ||
| 30B | S | 53.4 tok/s | ||
| 35B | A | 28.9 tok/s |
Yes, RTX 4500 Ada 24GB can run Gemma 3 12B with a A grade (Runs well). Expected decode speed: 49.0 tok/s.
Gemma 3 12B (12B parameters) requires approximately 15.8 GB of memory with Q4_K_M quantization.
The recommended quantization for Gemma 3 12B is Q4_K_M, which balances quality and memory efficiency.
On RTX 4500 Ada 24GB, Gemma 3 12B achieves approximately 49.0 tokens per second decode speed with a time-to-first-token of 3955ms using Q4_K_M quantization.
For coding workloads, Gemma 3 12B on RTX 4500 Ada 24GB receives a A grade with 49.0 tok/s and 43K context.
On RTX 4500 Ada 24GB, Gemma 3 12B can safely use up to 43K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/gemma-3-12b-on-rtx-4500-ada-24gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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