How to understand what power supply does my pc need?

Hi all, I need to replace a power supply in an old pc. I think it's 650-700w, but could it be too much for a GTX960+AMD FX8320?

Is there a tool to help me evaluate the proper power range needed?

11 points · 8 comments · view on lemmy.world

8 Comments

HoodsOwn@lemmy.world · 15 pts · 2y (2 replies)

Pcpartpicker will help you with this issue.

UprisingVoltage@feddit.it · 2 pts · 2y

Thank you

SpaceNoodle@lemmy.world · 1 pts · 2y

+1 for PCPartPicker. I use this for every new build and upgrade, no exceptions. I've used it for over a decade and it hasn't failed me once.

DaCrazyJamez@sh.itjust.works · 10 pts · 2y (2 replies)

Theres really no risk with going too big on a power supply, as the rating is the max draw, not the constant output. A 1200w power supply will only provide 650w, if thats all thats being called for.

pixelscience@lemm.ee · 11 pts · 2y (1 reply)

Power supplies are also more efficient when not near their max load, so a 1200w only doing 650 is going to be better off than a 700 doing 650.

UprisingVoltage@feddit.it · 4 pts · 2y

Cool, I didn't know that

Treczoks@lemmy.world · 3 pts · 2y (1 reply)

BeQuiet has a PSU calculator: https://www.bequiet.com/en/psucalculator

UprisingVoltage@feddit.it · 1 pts · 2y

Amazing, thanks