Is 550W enough for GTX 980 TI

[Guest]

System
I5 4690
Zotac GTX 980 TI Amp extreme
Gigabyte G1 sniper b6
16gb Kingston hyperx 1600mhz
Seagate barracuda 1TB
1 optical drive

Psu- seasonic g550

Thanks

 

[shogunofharlom]

You have a hq psu, but you are cutting it really close. It is enough power, but you cannot add anything else or overclock anything. Buy a kill-a-watt for $20 and measure your full load usage. Save up for a 750 for the near future.

 

[MILTONIHADES]

as for the nvidia Minimum System Power Requirement is 600W so maybe it can power your system(idle) but no overclocking and running programs because if the gpu is underload your pc will shutdown or worse the psu will burn out much worse the gpu will also burn out.

buy atleast 1000W. its not a overkill its an allowance for overclocking and other hardwares.

 

[Mr5oh]

1000 watt? That's ridiculous. No reason to spend money on a PSU that large in this case.

So a 980 TI draws 250 watts at full load, your 4690 draws 84 watts at full load, so that's 334 watts if you manage to get the GPU and CPU at 100% load at the same time. Throw in another very generous 30-40 watts for everything else, so that places you at 374 watts, lets say 400 watts with everything going full tilt. In my experience (from what I've measured) OC generally increases power consumption by about 10%-15%, so even using the extremely generous figure of 400 + 15% that still only puts you at 460 watts.

If you look at the math, it shows you are fine. Ideally you want to keep your load on the PSU at about 50% where it's most efficient, which means the least amount of heat is being created, and the less energy wasted. Odds are very high you aren't going to have everything running at 100% load all the time. I wouldn't worry about it. You are probably going to idle at under 100watts anyways.

 

[guanyu210379]

1000W?! you are talking complete nonsense!
For a single GTX980Ti, 550W is quite at limit, 600W would be ideal.

 

[Guest]

I have another choice which seasonic eco 600w. But I don't like it very much.