GGUF Q4 vs software-emulated NVFP4: could FP4 block scaling win on quality?

theqmann · reddit · 2026-10-12

A Reddit user with a 4000-series GPU (no native NVFP4 support) asks whether software-emulated FP4 could beat Q4 GGUF: both should use the same VRAM as 4-bit stores, and FP4's block group scaling should reduce precision loss—if emulation overhead is low. Seeking comparisons.

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