Lmstudio Community Qwen3 Coder 30B A3b Instruct Mlx 5bit speed on RX 7900 XT and quantization-level VRAM fit.
RX 7900 XT meets the minimum VRAM requirement for Q4 inference of Lmstudio Community Qwen3 Coder 30B A3b Instruct Mlx 5bit. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RX 7900 XT can run Lmstudio Community Qwen3 Coder 30B A3b Instruct Mlx 5bit with Q4 quantization. At approximately 146 tokens/second, you can expect Excellent speed - conversational response times under 1 second.
You have 5GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 15GB | 20GB | 146.29 tok/s | ✅ Fits comfortably |
| Q8 | 30GB | 20GB | 102.40 tok/s | ❌ Not recommended |
| FP16 | 60GB | 20GB | 55.59 tok/s | ❌ Not recommended |
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RX 7900 XT can run Lmstudio Community Qwen3 Coder 30B A3b Instruct Mlx 5bit at Q4 with an estimated 146 tok/s.
Q4 inference is estimated to need about 15GB VRAM on this page, while RX 7900 XT has 20GB available.
If you need more speed or context headroom, compare alternative GPUs below and check higher-tier VRAM options.