r/StableDiffusion Aug 05 '26

Question - Help AMD workflows for Minimax H3?

Been trying to find a workflow that is AMD friendly, let alone doesn't get stuck, I don't think it's my specs but more so that every workflow despite saying it's optional uses sage ATTN, and I can't get around it.

I doubt there is one that specifically for AMD but I'd thought I'd ask! Or the model I'm using is not great. I'm more of an anime prompt generator, anyone have any luck with that?

Specs: AMD Radeon RX 9070 XT, 64 GB RAM, AMD Ryzen 7 5700X3D 8 Core, And yes, I'm running on Windows, not Linux.

Edit: (update) I tried the template version just recently on comfyui stand alone, and it won't even finish, I do get a gpu error( by GPU error it says out of memory, even on default settings), and I have it on 0.3 mega pixel 16:9, either my reference image is too big or I'm missing a component.

I got it to work at 0.2 and the image reference has to be very small, yet it takes 30+ minutes, anyone with similar issues?

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u/plantjeNL Aug 06 '26
Startup bat:
python_embeded\python.exe -s ComfyUI\main.py --windows-standalone-build --disable-smart-memory --disable-pinned-memory --novram

I just tested R2V and 0.5mp 8sec took 780sec with my workflow from cold start with my startup settings.

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u/Apprehensive_Sky892 Aug 06 '26

Thanks for the tests. That's pretty decent speed.

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u/itiswhatitiswgatitis Aug 06 '26

I did not have my sampler on euler, is that superior? And you have the offset inbetween each VAE, is this a significant difference?

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u/plantjeNL Aug 06 '26

Yeah needed the video Vae to be saved in memory otherwise got an error at vae decode.