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What power supply does the GTX 1050 Ti need?

A 550 W power supply covers the GTX 1050 Ti with any processor. With a processor that draws less, such as the Ryzen 5 7600, 450 W is enough.

The NVIDIA GeForce GTX 1050 Ti is rated 75 W. How big a power supply it needs depends on the processor beside it: at their makers’ limits, processors draw anything from 81 W to 253 W. Each size below is at least a quarter more than the whole PC draws at full load.

The GTX 1050 Ti with each processor
ProcessorProcessor powerWhole PC at full loadPower supply
Ryzen 5 560088 W223 W450 W
Ryzen 5 760088 W223 W450 W
Core i5-12400117 W252 W450 W
Core i5-14400148 W283 W450 W
Ryzen 7 9800X3D162 W297 W450 W
Core i5-14600K181 W316 W450 W
Ryzen 9 9950X230 W365 W550 W
Core Ultra 7 265K250 W385 W550 W
Core i9-14900K253 W388 W550 W

Worth knowing

More on the GTX 1050 Ti

How this 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 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.

Is your power supply keeping up?

A power supply that cannot keep up does not lower the frame rate: the PC switches off or restarts, or the screen goes black, usually in the middle of a game. Bottleneck’s heat and stability check can load the processor and graphics card together for up to an hour, then says whether the PC held up, restarted, or lost its graphics driver. It also finds the everyday reasons a PC falls short of its parts: memory below its rated speed, Resizable BAR left off, a monitor held at 60 Hz, heat.

The free version gives each check’s verdict, with no time limit and no account. Pro, $9 once, explains the cause and the fix. Compare the versions