Choosing MiniMax H3 Quantization for RTX 5090: int8 vs nvfp4
Zerozone000 · reddit · 2026-08-10
With the arrival of Nvidia's Blackwell architecture GPUs, users are raising hardware compatibility questions for local deployment of the MiniMax H3 model.
While the community generally prefers the int8 convrot version, a prunednvfp4convrotint8 model optimized for the new architecture has appeared on Hugging Face. The poster wants to know if there are performance differences between these two quantization schemes on the RTX 5090, and whether the Blackwell architecture allows the nvfp4 format to yield better results.
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