Is the Seasonic S12III 550W PSU suitable for an RX 580 with 8GB of VRAM?
Is the Seasonic S12III 550W PSU suitable for an RX 580 with 8GB of VRAM?
yes it will work, the card uses about 200w when gaming.
the rest of the system (assuming a typical setup with 6-8 cpus and 1-2 drives) usually stays under 150w during heavy use.
(except for new intel i7/i9 processors and a few other cases—even then, gaming only draws around 100w).