A:Answer If you are looking to upgrade to the RTX 2070 Super you may want to check on the PSU. The RTX 2070 Super draws more power than the RX 580, so if your current PSU isn't rated for enough watts to give you the additional headroom, then you may run into problems.
A system built and sold with an RX580 may have a PSU as low as 500W. Considering that you have a Ryzen 5, the lower end of the range of power requirements is likely okay, but for an RTX 2070 Super you should still aim for at least 550W. If you are considering upgrading the CPU in the future to a model that uses more power, then you may need 600W or more to ensure system stability and efficiency.