stablelm 2 1 6b chat imatrix needs ~6.9 GB VRAM. RX 6900 XT 16GB has 16.0 GB. With Q4_K_M quantization, expect ~80 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
79.7 tok/s
TTFT
2428 ms
Safe context
224K
Memory
6.9 GB / 16.0 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 | Runs well | 79.7 tok/s | 1324 ms | 224K |
| Coding | C | Runs well | 79.7 tok/s | 2428 ms | 224K |
| Agentic Coding | C | Runs well | 79.7 tok/s | 3532 ms | 224K |
| Reasoning | C | Runs well | 79.7 tok/s | 2869 ms | 224K |
| RAG | C | Runs well | 79.7 tok/s | 4414 ms | 224K |
How stablelm 2 1 6b chat imatrix (6B params) fits at each quantization level on RX 6900 XT 16GB (16.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 2.3 GB | Low | C46 |
Q3_K_S | 3 | 2.9 GB | Low | C47 |
NVFP4 | 4 | 3.4 GB | Medium | C47 |
Q4_K_M | 4 | 3.7 GB | Medium | C47 |
Q5_K_M | 5 | 4.3 GB | High | C48 |
Q6_K | 6 | 4.9 GB | High | C48 |
Q8_0 | 8 | 6.4 GB | Very High | C50 |
F16Best for your GPU | 16 | 12.3 GB | Maximum | C50 |
Copy-paste commands to run stablelm 2 1 6b chat imatrix on your machine.
Run
lms load hf-crataco--stablelm-2-1-6b-chat-imatrix-gguf && lms server startYes, RX 6900 XT 16GB can run stablelm 2 1 6b chat imatrix with a C grade (Runs well). Expected decode speed: 79.7 tok/s.
stablelm 2 1 6b chat imatrix (6B parameters) requires approximately 6.9 GB of memory with Q4_K_M quantization.
The recommended quantization for stablelm 2 1 6b chat imatrix is Q4_K_M, which balances quality and memory efficiency.
On RX 6900 XT 16GB, stablelm 2 1 6b chat imatrix achieves approximately 79.7 tokens per second decode speed with a time-to-first-token of 2428ms using Q4_K_M quantization.
For coding workloads, stablelm 2 1 6b chat imatrix on RX 6900 XT 16GB receives a C grade with 79.7 tok/s and 224K context.
On RX 6900 XT 16GB, stablelm 2 1 6b chat imatrix can safely use up to 224K 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-crataco--stablelm-2-1-6b-chat-imatrix-gguf-on-rx-6900-xt-16gb" 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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