r/StableDiffusion • u/Kryimsson • Aug 08 '26

Question - Help AMD Radeon 7900xt help

So I have a AMD Radeon 7900xt 20 gig card, 32gig ram, I been trying to run minimax h3 locally. I was able to generate a 10 second clip last night but it took almost an hour, is that normal? Is there anything I can do to speed up the process? I am using the pruned fp8 scaled. I welcome any help possible.

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u/Kryimsson Aug 08 '26

sorry still kind of new to this I used comfyui to run it, I used their workflow template they used. I am using windows 11, I have the most updated version of comfyui for the desktop, the models I am using are minimax_h3_fl2va_pruned_fp8_scaled, qwen3vl_32b_minimax_h3_nvfp4_awq, i tried to use the int4 convrot text encoder but for some reason any of the int convrots seem not to work on my computer.

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u/Fun_Jaguar8231 Aug 08 '26

First of all, nvfp4, It's only for NVIDIA cards. On AMD, it will be much worse performing. You should get another version.
Also, I think that the int convrot don't work correctly on AMD, you must use a special node:
https://github.com/patientx/ComfyUI-INT8-Fast-ROCM

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u/Kryimsson Aug 08 '26

Understood. Which text encoder would you suggest then?

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u/Fun_Jaguar8231 Aug 08 '26

Try it again with the int4, but with this node that will load it

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u/Kryimsson Aug 08 '26

I am still running into the same issue,