this post was submitted on 18 Jun 2023
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Stable Diffusion

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I understand that my old laptop is not enough for SD, till now I work online, but it's not so nice, I want local, so looking build PC.

Budget around +-1500 with the monitor and other parts. I was thinking about : i5-13400, rtx 3060, 1tb ssd, if need add HDD, 32 gb ddr4 ram.

But maybe some one can help me with my choices.

Is i5-13400 enough? a lot of people tell me that better i7 or i9, but I don't think is worth that +few hundreds extra

Can I after if need to add a second GPU like 4060Ti, can i run SD smoothly with 2 different GPU?

I don't have a lot of understanding about motherboards, I found info that most of popular cheaper motherboards don't support ddr4 ram and 13th gen CPU?

Any help or advice would be really nice. Want to build PC for learning and trying more things, and don't want to invest too much, because everything changes so fast

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[–] Stampela@startrek.website 2 points 1 year ago

Agreed, and multiple gpu are worthless for Stable Diffusion... I run a 12gb 3060 and a 4gb 1650, and I can only use one for SD. I can pick at launch so I have two bat files, one for each, and if I plan to also run a LLM then SD goes to the 1650 as LLM are stupidly hungry for vram. Plus a thing I learned when I started to mess around with distributed loads is that you really want similar performance all around: it's a lot of fun seeing an upscale going 100% load on everything, then fast gpu goes idle while slow one finishes the same amount of work, then another spike and idle... and sadly even without using the power of multiple gpus, stable diffusion can't use the extra vram, not even as fast swap. So yeah, unless things change multiple gpu for stable diffusion are a waste of budget.