Black Forest Labs Flux 1 Dev speed on RX 7700 XT and quantization-level VRAM fit.
RX 7700 XT meets the minimum VRAM requirement for Q4 inference of Black Forest Labs Flux 1 Dev. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RX 7700 XT can run Black Forest Labs Flux 1 Dev with Q4 quantization. At approximately 51 tokens/second, you can expect Good speed - acceptable for interactive use.
You have 6GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 6GB | 12GB | 50.51 tok/s | ✅ Fits comfortably |
| Q8 | 12GB | 12GB | 35.36 tok/s | ⚠️ Tight fit |
| FP16 | 24GB | 12GB | 19.19 tok/s | ❌ Not recommended |
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RX 7700 XT can run Black Forest Labs Flux 1 Dev at Q4 with an estimated 51 tok/s.
Q4 inference is estimated to need about 6GB VRAM on this page, while RX 7700 XT has 12GB available.
If you need more speed or context headroom, compare alternative GPUs below and check higher-tier VRAM options.