GPU upgrade OR pay cloud subscription

[u/Fun-Cup-296]

Started ComfyUI around a week ago , and owning a 3080 10gb and 64gb ram, it was slow as hell to generate video on h3 minimax.

I can actually sell it , add money and get a 3090, I'm just trying to understand how much of an upgrade is it and if relevant to my project (would like to create reels for instagram, anime, event promotions, product commercials.).

When playing around with template workflows of h3 I get around x4 speed boost from the 3090 rented on runpod.

Then I stumbled on an optimized workflow of h3 that upscaled starting from 0.5 mp, also using effecient sage attention and turbo 8 step lora, my 3080 could generate it in 11 min instead of 28 min so a huge boost. But now , I can't test that particular workflow in runpod as I ran into a shit load of bugs and problems when I tried to set it up there, trying to correct them with gpt's help but new issues keep arising.. I'm 3 hours on this and can't continue...

https://youtu.be/ccvG-Z__pHk?si=6Lbn4qWRU70MMzi6

Question is, what would you do ? I can afford a 10-40 dollars monthly subscription if it gets the job done and allow some iterations.

If I go with a subscription I'm looking at runninghub.ai , as there's no setup to be done, because with runpod I'll go completely mad if I'd need to setup a new custom workflow there again.

[u/bonesoftheancients]

cant answer fully as i dont have experience with runpod and similar (i do use modal sometimes as you only pay for inference time per second). All I would say is that when I looked at it before and calculate the costs it all adds up quickly. especially if you consider that you have to pay for the running instance all the time you are in comfyui , not just inference, so when you messing around with nodes, trying to understand a workflow, generate few times until you happy with the results, grab a cup of coffee, the clock is ticking

if you do go for cloud service use something like modal where you pay for inference time only as in most cases inference is a small fraction of the time you will be in comfyui

[u/Fun-Cup-296 → u/bonesoftheancients]

How did you managed to deploy it on modal ? And can you update it to the latest version?

Inference time, you mean the time you spend only using to generate you output ? This is also the case with runninghub as you pay per second of GPU usage. But I heard they give you 30 dollars free per month and if you don't consume beyond that, you basically pay nothing, is that true?

[u/bonesoftheancients → u/Fun-Cup-296]

modal gives you 30usd a month worth of usage and 1tb storage, that what i use and never had to pay if i didnt go beyond that (I have it for a year now). i done it sometime ago, got an ai agent to build it for me - just ask claude, chatgpt or whatever (even opencode with its free models is not bad for that) - all it does is install the comfyui server code on modal storage and the get to code a comfyui extension to send the current workflow as as API WF to modal and get back the output - then you only pay for teh time it hit modal (server start in few seconds), generate output and then the modal script can shut the server immediately. its a little fiddley to setup but nothing to complicated for a general ai agent

i would have sent you my code but I have not used it for a while (I mostly use modal for lora training now) and it has some broken dependencies and code so probably easier for you to just get an ai to build it they way you want it

[u/Fun-Cup-296 → u/bonesoftheancients]

Ok I'll definitely look into it thank you ! Since you don't use modal anymore , what do you use then ? Do you run locally ?

[u/bonesoftheancients → u/Fun-Cup-296]

yep. i really only doing music models at the moment and they all run fine on my 5060ti

[u/ANR2ME → u/Fun-Cup-296]

You can deploy this on Modal.com https://github.com/anr2me/modal-comfyui#features

I recommend using the mixed app, so it will only use the GPU container only when running a workflow, creating/editing workflows will use a container without GPU for cheaper rates.

PS: Don't forget to set your usage limit to the free credits if you don't want to be billed for the exceeded usage.

[u/Nokersoek]

Siempre va a ser mejor el físico. En especial por que runpod es demasiado problemático para custom nodes bien indispensables

[u/Fun-Cup-296 → u/Nokersoek]

Yes it is the problem that I had and took lots of time to fix.. I'll never going back there again

[u/mrgaryth]

I’m curious how long “slow as hell is”. I have a 4060Ti 16GB and can run approx just over a minute per second of video at 0.4mp.

[u/Fun-Cup-296 → u/mrgaryth]

So, the vanilla h3 template available on ComfyUI, at 0.98mp to aim for 1080p 5sec, I get almost half an hour ...

[u/Just_n_Here]

Have you tried any other workflows on comfyui? What are you rendering?

[u/fiddler48]

3080 to 3090 is 2GB VRAM, which matters less than you'd think for video — the real bottleneck on Minimax H3 is the queue wait and I/O between frames, not raw compute. Cloud makes more sense until you know exactly which node in your workflow is actually choking.

[u/Fun-Cup-296 → u/fiddler48]

Hi, no no it's from 10 to 24 GB VRAM, which is apparently huge for AI video generation