Before you buy any graphics card, you should make sure that it's a good fit for your computer. Using an older CPU or motherboard with a brand-new graphics card can limit your overall performance and create bottlenecks that prevent you from getting the most out of your card.  Check that your motherboard supports the latest specifications, like PCIe 4.0. Newer graphics cards also demand lots of power, so make sure your power supply has enough juice to keep your computer running. Finally, always measure the inside of your case to make sure the graphics card will physically fit during installation, as different cases can position the graphics card at different angles. Different manufacturers also make different sized versions of the same graphics card to add extra fans or lighting.