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Id like a 3080, but am extreemly limited re: knowlege. I know there are several 3080 cards on the market. With my limited knowlege, Ive thus far thought: 1) Not sure a 3080 Trio would fit, the physical dimensions of a 3080 Trio card (3 fans) are a few cm longer than the non trio cards, and space...

Im not sure how to go about figuring out which PSU I need size-wise. I have a 650 watt psu and want to be safe, so Id like to buy a 750watt psu, prior to ordering a 3080. I dont want to order something that wont fit my case. How do I use windows or my eyeballs to figure out what size PSU I...