ComfyUI - Comparison of the two versions of Flux NF4 in terms of speed and quality

In this video, we want to compare the speed and quality of two models: Flux NF4-v1 and Flux NF4-v2. Therefore, the settings for both workflows will be the same.

Flux1-dev-bnb-nf4-v2 is quantized in a better way to turn off the second stage of double quant.
V2 is 0.5 GB larger than Flux1-dev-bnb-nf4-v1, since the chunk 64 norm is now stored in full precision float32, making it much more precise than the previous version. Also, since V2 does not have second compression stage, it now has less computation overhead for on-the-fly decompression, making the inference a bit faster.

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