Qwen 2.5 7B needs ~6.8 GB VRAM. RX 6600 8GB has 8.0 GB. With Q4_K_M quantization, expect ~28 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
27.9 tok/s
TTFT
6937 ms
Safe context
38K
Memory
6.8 GB / 8.0 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 | 27.9 tok/s | 3784 ms | 38K |
| Coding | A | Tight fit | 27.9 tok/s | 6937 ms | 38K |
| Agentic Coding | A | Runs with offload | 27.9 tok/s | 10090 ms | 38K |
| Reasoning | A | Tight fit | 27.9 tok/s | 8198 ms | 38K |
| RAG | A | Runs with offload | 27.9 tok/s | 12613 ms | 38K |
How Qwen 2.5 7B (7B params) fits at each quantization level on RX 6600 8GB (8.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 2.7 GB | Low | A79 |
Q3_K_S | 3 | 3.4 GB | Low | A79 |
NVFP4 | 4 | 3.9 GB | Medium | A79 |
Q4_K_M | 4 | 4.3 GB | Medium | A79 |
Q5_K_MBest for your GPU | 5 | 5.0 GB | High | A79 |
Q6_K | 6 | 5.7 GB | High | F0 |
Q8_0 | 8 | 7.5 GB | Very High | F0 |
F16 | 16 | 14.3 GB | Maximum | F0 |
Copy-paste commands to run Qwen 2.5 7B on your machine.
Run
ollama run qwen2.5Your hardware
| Model | Params | Grade | Decode | Capabilities |
|---|---|---|---|---|
| 9B | A | 11.5 tok/s | ||
| 8B | A | 14.9 tok/s | ||
| 8B | A | 15.8 tok/s | ||
| 8B | A | 15.8 tok/s | ||
| 8B | B | 14.9 tok/s |
Yes, RX 6600 8GB can run Qwen 2.5 7B with a A grade (Tight fit). Expected decode speed: 27.9 tok/s.
Qwen 2.5 7B (7B parameters) requires approximately 6.8 GB of memory with Q4_K_M quantization.
The recommended quantization for Qwen 2.5 7B is Q4_K_M, which balances quality and memory efficiency.
On RX 6600 8GB, Qwen 2.5 7B achieves approximately 27.9 tokens per second decode speed with a time-to-first-token of 6937ms using Q4_K_M quantization.
For coding workloads, Qwen 2.5 7B on RX 6600 8GB receives a A grade with 27.9 tok/s and 38K context.
On RX 6600 8GB, Qwen 2.5 7B can safely use up to 38K 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/qwen-2.5-7b-on-rx-6600-8gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview: