I was thinking of going for a 3090 but wasn't sure whether it was worth it due to the price still being quite high, it would certainly blow my budget out of the water. What kind of models are you planning on using it for?

AMD Ryzen 9 processors definitely seem worth looking into though, thanks.

If you are planning to do serious DL projects with images or anything multi-modal single 12GB card might not get you very far and you could be severely limited during training.