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I Unlocked BF16 on an RTX 4090 and Compared It to an RTX 5090 (on Windows 11)

Using MarvinFS’s tool, I successfully unlocked BF16 on the RTX 4090 running Windows 11. https://github.com/MarvinFS/rtx4090-uefi/releases It was very easy, so if you have an RTX 4090 whose manufacturer’s warranty has expired, why not give it a try? I tested several image and video generation tasks…

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  1. 2026-10-31 07:12 · r/StableDiffusion
    I Unlocked BF16 on an RTX 4090 and Compared It to an RTX 5090 (on Windows 11)

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