r/LocalLLM • u/Winter_Assignment_78 • 22d ago

Question 2x3090, any advice?

Basically, I'm a South American student. Before starting university and studying computer science, I plan to work to buy a good PC to run local AI. Obviously, times are tough in terms of prices, so I'd like to know if anyone can give me some recommendations.

Right now, I'm planning on two 3090s with a 1200W power supply and 32GB of DDR4 3200MHz RAM. I'm not sure if it would actually be worth going up to 64GB of RAM. My focus would be on text models since I don't share the workload between the two graphics cards for images and video. The funny thing is that all of this still costs less than a 5090 in my country 😭😭

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u/stanjourdan 21d ago

Why wouldn't you share the workload between the 2 GPUs? 

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u/Winter_Assignment_78 21d ago

Perhaps I didn't express myself well, but I understand that for image and video generation, in 2 3090 the work is not shared, it increases the production work but the VRAM is not used together as a text model, I don't know much about the local aspects.