Adds memory headroom for longer context windows and future model growth.
~$329 MSRP
gemma 3 12b it needs ~10.8 GB VRAM. RX 6750 XT 12GB has 12.0 GB. With Q4_K_M quantization, expect ~31 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
Tight fit
Decode
31.3 tok/s
TTFT
6190 ms
Safe context
29K
Memory
10.8 GB / 12.0 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 | C | Tight fit | 31.3 tok/s | 3376 ms | 29K |
| Coding | C | Tight fit | 31.3 tok/s | 6190 ms | 29K |
| Agentic Coding | C | Runs with offload (needs ~0.1 GB host RAM) | 22.5 tok/s | 12499 ms | 29K |
| Reasoning | C | Tight fit | 31.3 tok/s | 7315 ms | 29K |
| RAG | C | Runs with offload (needs ~0.1 GB host RAM) | 22.5 tok/s | 15623 ms | 29K |
How gemma 3 12b it (12B params) fits at each quantization level on RX 6750 XT 12GB (12.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 4.7 GB | Low | C52 |
Q3_K_S | 3 | 5.9 GB | Low | C52 |
NVFP4 | 4 | 6.7 GB | Medium | C52 |
Q4_K_M | 4 | 7.3 GB | Medium | C52 |
Q5_K_MBest for your GPU | 5 | 8.6 GB | High | C52 |
Q6_K | 6 | 9.8 GB | High | F0 |
Q8_0 | 8 | 12.8 GB | Very High | F0 |
F16 | 16 | 24.6 GB | Maximum | F0 |
Copy-paste commands to run gemma 3 12b it on your machine.
Run
lms load hf-maziyarpanahi--gemma-3-12b-it-gguf && lms server start升级选项
Adds memory headroom for longer context windows and future model growth.
~$329 MSRP
Adds memory headroom for longer context windows and future model growth.
~$349 MSRP
Raises estimated decode speed by about 73%.
Adds memory headroom for longer context windows and future model growth.
~$479 MSRP
Yes, RX 6750 XT 12GB can run gemma 3 12b it with a C grade (Tight fit). Expected decode speed: 31.3 tok/s.
gemma 3 12b it (12B parameters) requires approximately 10.8 GB of memory with Q4_K_M quantization.
The recommended quantization for gemma 3 12b it is Q4_K_M, which balances quality and memory efficiency.
On RX 6750 XT 12GB, gemma 3 12b it achieves approximately 31.3 tokens per second decode speed with a time-to-first-token of 6190ms using Q4_K_M quantization.
For coding workloads, gemma 3 12b it on RX 6750 XT 12GB receives a C grade with 31.3 tok/s and 29K context.
On RX 6750 XT 12GB, gemma 3 12b it can safely use up to 29K tokens of context. The model's official context limit is —, 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/hf-maziyarpanahi--gemma-3-12b-it-gguf-on-rx-6750-xt-12gb" 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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