NF4 and FP8 Checkpoints:
NF4 Checkpoint (flux1-dev-bnb-nf4.safetensors): Optimized for performance with speed improvements ranging from 1.3x to 4x compared to FP8, depending on the GPU and software setup. NF4 is now the recommended format for most users with compatible GPUs (RTX 3XXX/4XXX series).
FP8 Checkpoint (flux1-dev-fp8.safetensors): Provided as an alternative for older GPUs that do not support NF4.
Performance Improvements:
NF4 demonstrates faster inference speeds and reduced memory usage compared to FP8, making it highly efficient for image diffusion tasks.
The NF4 utilizes multiple tensor precisions (float32, float16, uint8, int4) to achieve higher numerical precision and dynamic range, outperforming FP8 in most scenarios.
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https://civitai.com/models/638572/nf4-flux1 ),if the original author has objections to this transfer, you can click,
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