Can I Run / Qwen3 4B Instruct 2507 / on AMD RX 6600 XT
Can I Run Qwen3 4B Instruct 2507 on a AMD RX 6600 XT?
Yes
Runs at Q8_0 — near-lossless quality.
Model size
4.0B
GPU memory
8.0GB
Smallest quant
Q2_K
Best fit
Q8_0
12 quantizations fit your 8.0GB
| Quant | Min VRAM | Recommended | File size | Headroom |
|---|---|---|---|---|
| Q8_0BEST | 5.3 GB | 6.8 GB | 4.3 GB | +2.8 GB |
| Q6_K | 4.3 GB | 5.8 GB | 3.3 GB | +3.7 GB |
| Q5_K_M | 3.8 GB | 5.3 GB | 2.9 GB | +4.2 GB |
| Q5_K_S | 3.8 GB | 5.3 GB | 2.8 GB | +4.2 GB |
| Q4_1 | 3.5 GB | 5.0 GB | 2.6 GB | +4.5 GB |
| Q4_K_M | 3.4 GB | 4.9 GB | 2.5 GB | +4.6 GB |
| Q4_K_S | 3.3 GB | 4.8 GB | 2.4 GB | +4.7 GB |
| Q4_0 | 3.3 GB | 4.8 GB | 2.4 GB | +4.8 GB |
| Q3_K_L | 2.8 GB | 4.3 GB | 2.2 GB | +5.2 GB |
| Q3_K_M | 2.7 GB | 4.2 GB | 2.1 GB | +5.3 GB |
| Q3_K_S | 2.5 GB | 4.0 GB | 1.9 GB | +5.5 GB |
| Q2_K | 2.3 GB | 3.8 GB | 1.7 GB | +5.7 GB |
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Full model details
Qwen3 4B Instruct 2507 →
All quant variants, benchmark scores, and use-case tags.
Best models for this GPU
AMD RX 6600 XT →
Top-ranked open-source models that fit in 8.0GB.
FAQ
Can the AMD RX 6600 XT run Qwen3 4B Instruct 2507?
Yes. The AMD RX 6600 XT's 8.0GB of VRAM is enough to run Qwen3 4B Instruct 2507 at Q8_0 quantization (5.3GB required).
What's the best quantization to use?
Q8_0 is the highest-precision quantization that fits in your 8.0GB. It uses about 5.3GB of memory and 6.8GB 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.