Yi 1.5 6B needs ~6.7 GB VRAM. RX 6750 XT 12GB has 12.0 GB. With Q4_K_M quantization, expect ~63 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
68.0 tok/s
TTFT
2846 ms
Safe context
4K
Memory
6.7 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 | Runs well | 68.0 tok/s | 1552 ms | 4K |
| Coding | C | Runs well | 62.6 tok/s | 3095 ms | 4K |
| Agentic Coding | C | Runs well | 68.0 tok/s | 4139 ms | 4K |
| Reasoning | C | Runs well | 68.0 tok/s | 3363 ms | 4K |
| RAG | C | Runs well | 68.0 tok/s | 5174 ms | 4K |
How Yi 1.5 6B (6B params) fits at each quantization level on RX 6750 XT 12GB (12.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 2.3 GB | Low | C48 |
Q3_K_S | 3 | 2.9 GB | Low | C49 |
NVFP4 | 4 |
Copy-paste commands to run Yi 1.5 6B on your machine.
Run
lms load Yi-1.5-6B-Chat && lms server startYes, RX 6750 XT 12GB can run Yi 1.5 6B with a C grade (Runs well). Expected decode speed: 62.6 tok/s.
Yi 1.5 6B (6B parameters) requires approximately 6.7 GB of memory with Q4_K_M quantization.
The recommended quantization for Yi 1.5 6B is Q4_K_M, which balances quality and memory efficiency.
On RX 6750 XT 12GB, Yi 1.5 6B achieves approximately 62.6 tokens per second decode speed with a time-to-first-token of 3095ms using Q4_K_M quantization.
For coding workloads, Yi 1.5 6B on RX 6750 XT 12GB receives a C grade with 62.6 tok/s and 4K context.
On RX 6750 XT 12GB, Yi 1.5 6B can safely use up to 4K tokens of context. The model's official context limit is 4K, 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/yi-1.5-6b-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>
Preview:
3.4 GB |
| Medium |
| C50 |
Q4_K_M | 4 | 3.7 GB | Medium | C50 |
Q5_K_M | 5 | 4.3 GB | High | C51 |
Q6_K | 6 | 4.9 GB | High | C52 |
Q8_0Best for your GPU | 8 | 6.4 GB | Very High | C52 |
F16 | 16 | 12.3 GB | Maximum | F0 |