Rtx 4090 and 1000 watt psu?

[Zippy6]

Hiku said:

Zippy6 said:

If you're ever concerned about this you can power limit your GPU with afterburner, and GPU's are FAR more efficient at lower wattages. For example when I dropped my old GTX 1660 Ti to 70% power limit it only reduced performance by about 10%. So 30% less watts but only 10% less performance.

I run my RTX 3060 at 58% power limit 24/7 lol. For sound reasons rather than cost reasons because I'm anal about fan noise. But basically If I uncap my power limit I'm only going to go from say 60fps to 70fps at most.

So if you don't want every scrap of performance then it's an easy way to make your GPU very quiet, cool and efficient.

I'm thinking about this mainly from the perspective if I don't plan to use the GPU often at all for anything beyond normal Windows/internet browser tasks. If I just use it for that, does the GPU draw much less power from the PSU since it doesn't need much?

Yes the GPU should only draw what it needs. You don't need to worry from that perspective. 4090 will draw 21w when your PC is idle, 26w doing video playback. So desktop use it's going to hover around the 20-30w range mostly. It will only higher when it actually needs it.