Can I Run Qwen3 8B on a AMD RX 6950 XT?
Yes
Runs at Q8_0 — near-lossless quality.
Model size
8.2B
GPU memory
16.0GB
Smallest quant
Q2_K
Best fit
Q8_0
12 quantizations fit your 16.0GB
| Quant | Min VRAM | Recommended | File size | Headroom |
|---|---|---|---|---|
| Q8_0BEST | 9.7 GB | 11.2 GB | 8.7 GB | +6.3 GB |
| Q6_K | 7.8 GB | 9.3 GB | 6.7 GB | +8.3 GB |
| Q5_K_M | 6.8 GB | 8.3 GB | 5.8 GB | +9.2 GB |
| Q5_K_S | 6.7 GB | 8.2 GB | 5.7 GB | +9.3 GB |
| Q5_0 | 6.6 GB | 8.1 GB | 5.7 GB | +9.4 GB |
| Q4_1 | 6.1 GB | 7.6 GB | 5.3 GB | +9.9 GB |
| Q4_K_M | 6.0 GB | 7.5 GB | 5.0 GB | +10.0 GB |
| Q4_K_S | 5.7 GB | 7.2 GB | 4.8 GB | +10.3 GB |
| Q3_K_L | 4.7 GB | 6.2 GB | 4.4 GB | +11.3 GB |
| Q3_K_M | 4.4 GB | 5.9 GB | 4.1 GB | +11.6 GB |
| Q3_K_S | 4.2 GB | 5.7 GB | 3.8 GB | +11.8 GB |
| Q2_K | 3.7 GB | 5.2 GB | 3.3 GB | +12.3 GB |
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Full model details
Qwen3 8B →
All quant variants, benchmark scores, and use-case tags.
Best models for this GPU
AMD RX 6950 XT →
Top-ranked open-source models that fit in 16.0GB.
FAQ
Can the AMD RX 6950 XT run Qwen3 8B?
Yes. The AMD RX 6950 XT's 16.0GB of VRAM is enough to run Qwen3 8B at Q8_0 quantization (9.7GB required).
What's the best quantization to use?
Q8_0 is the highest-precision quantization that fits in your 16.0GB. It uses about 9.7GB of memory and 11.2GB recommended for comfortable inference.
What if I need more headroom for context length?
KV cache memory grows with context length. The numbers above assume a baseline 2K-4K context. For long-context use (32K+), add another 2-6GB depending on the model architecture.