PSU calculator

Power supply for every graphics card

Each card’s rated power, and the power supply it needs with a processor that draws little, the Ryzen 5 7600 (88 W), and with any processor, up to the Core i9-14900K (253 W). Each card links to its own page, with more processors.

How it is worked out

Each figure is the most the part draws at its maker’s default settings: the graphics card’s board power, and the processor’s package power limit (AMD) or maximum turbo power (Intel). About 60 W is added for the rest of the PC — motherboard, memory, drives and fans — and the size is the smallest common one at least a quarter above that total, so the power supply runs at no more than 80% of its rating even then. Games rarely load both parts fully at once, so this is the most the PC will ask for, not what it draws all the time.

The figures are the makers’ own: NVIDIA’s total graphics power, AMD’s and Intel’s total board power for their own designs; AMD’s package power limit, which is 1.35 times the TDP on AM4 and AM5; and Intel’s maximum turbo power, or for chips older than its 10th generation, 1.25 times the TDP, its default then. Two things can push a real PC above them: a factory-overclocked graphics card, whose box says if it needs more, and a motherboard that lifts Intel’s power limits, which many do by default.

The wattage on the label only means something on a good power supply: choose a maker you know, and look for a review of that exact model.