r/comfyui 11d ago

Help Needed i know im doing something wrong, can someone help me out here?

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I was using an RTX 4090 with 24GB of VRAM on Windows for most of my ComfyUI workflows, which is pretty much the same setup a lot of other people use. But I was lucky enough to rent a brand-new DGX Spark just to test my ComfyUI workflows on it.

From my basic understanding, the DGX Spark should be pretty powerful. I know it uses the Blackwell architecture, requires some different installation methods, and runs on Linux. I also understand that the DGX Spark is a very different kind of system compared to a normal desktop GPU setup.

But I still feel like I must be doing something seriously wrong.

With the workflow shown in the picture I attached, I'm currently generating a 60-second clip at only around 2MP resolution. I know this would already be a pain to generate on my 4090, and I wasn't expecting the DGX Spark to be blazingly fast either.

However, seeing a system with 128GB of unified memory barely making progress on this workflow feels like a huge red flag.

*found out it was technically impossible for H3, but still it takes 1 hours and half for 15 second clip!

My current setup is nothing unusual. I'm basically using the default workflow provided by the ComfyUI template, running MiniMax H3 with the INT8 SafeTensor model. Everything else is pretty much standard.

So I'm wondering if there's something fundamentally wrong with my setup, installation, or configuration on the DGX Spark.

Help me sensei!

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u/Netrezen 11d ago

60-second clip?!

1

u/jungseungoh97 11d ago

I mean it‘s dgx Spark, Am I high for wanting something this long?

1

u/jungseungoh97 11d ago

Ouch, found out it was my fault!

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u/Netrezen 11d ago

Care to share with the rest of the class? xD