You’ll discover GPU launch dates and their specs, and can look back 12/18months to see how much they improved. Unit measurement (base fashions are sometimes the size of 1 slot, with custom cooling expanding that to 2, 2.5 or even 3 slots wide). Higher end PSUs often have “modular” cabling, which means you presumably can add cables as wanted somewhat than be compelled to stuff unused power cables away. The CPU is the “brain” of the computer and performs all computation.