Gtx 980ti sli watts minimum?

[cacatua420]

I have searched every where, and I know some threads answer this (sorta). But I really want to know if my 800 watt psu is enough to power two Msi 980ti's. I want to know if it's not enough. And if it would make the psu louder by pushing it too hard or something similar. My specs are Intel 17-5820k over clocked to 3.4 gigahertz (liquid cooled), and 1 gtx 980 ti (Msi). Please help

 

[Suzuki@1473780084@1473780163]

800W is overkill, you'll end up around 500W from the power supply, where as charts you see flying around will tell you that it's pulling ~600W-700W, but that's from the socket, not from the power supply. The only reason to ever buy 800W or more, is to have the power supply fans never turn on, this is a thing in some models.

 

[Dark Lord of Tech]

AMD recommends a decent 850w for 980ti SLI.

What make and model do you own?


If it's a high quality 800w it can run it.

 

[Onefurrybanana]

You should be fine, with an 800 you won't be able to do much overclocking. Your graphics cards will take around 500 and your cpu around 140 all at stock so u have 160 for everything else.

 

[Titanforall]

I have searched every where, and I know some threads answer this (sorta). But I really want to know if my 800 watt psu is enough to power two Msi 980ti's. I want to know if it's not enough. And if it would make the psu louder by pushing it too hard or something similar. My specs are Intel 17-5820k over clocked to 3.4 gigahertz (liquid cooled), and 1 gtx 980 ti (Msi). Please help

800W is overkill, you'll end up around 500W from the power supply, where as charts you see flying around will tell you that it's pulling ~600W-700W, but that's from the socket, not from the power supply. The only reason to ever buy 800W or more, is to have the power supply fans never turn on, this is a thing in some models.

Each nvidia GTX 980 TI draws around 280W at maximum performance and the two sli GTX 980 TI draw 590W. As you are overclocking Your i7-5820k then 800W PSU will be enough for your rig. But if it is a good quality Power Supply.Hope this might help you https://www.techpowerup.com/reviews/MSI/GTX_980_Ti_Gaming/28.html

 

[SkyEvil]

AMD recommends a decent 850w for 980ti SLI.

What make and model do you own?


A high quality 800w could run it.

Nvidia* recommends a decent 850w for 980ti SLI Quality 850w - 1000w PSU unit is recommended for 980 ti SLI

 

[Kenneth Hans]

Use Newegg's Power Supply Calculator to get you in the ballpark.

 

[Dark Lord of Tech]

If it's a quality 800w it can run it.

 

[Kenneth Hans]

Woops, forget to add the link:

http://images10.newegg.com/BizIntell/tool/psucalc/index.html

 

[Suzuki@1473780084@1473780163]

I have searched every where, and I know some threads answer this (sorta). But I really want to know if my 800 watt psu is enough to power two Msi 980ti's. I want to know if it's not enough. And if it would make the psu louder by pushing it too hard or something similar. My specs are Intel 17-5820k over clocked to 3.4 gigahertz (liquid cooled), and 1 gtx 980 ti (Msi). Please help

800W is overkill, you'll end up around 500W from the power supply, where as charts you see flying around will tell you that it's pulling ~600W-700W, but that's from the socket, not from the power supply. The only reason to ever buy 800W or more, is to have the power supply fans never turn on, this is a thing in some models.

Each nvidia GTX 980 TI draws around 280W at maximum performance and the two sli GTX 980 TI draw 590W. As you are overclocking Your i7-5820k then 800W PSU will be enough for your rig. But if it is a good quality Power Supply.Hope this might help you https://www.techpowerup.com/reviews/MSI/GTX_980_Ti_Gaming/28.html

From the wall... Assuming it's pulling 388W at the wall socket, then 80% efficient PSU = .8*388 = 310.4 total system. Crysis that is: http://www.anandtech.com/show/9306/the-nvidia-geforce-gtx-980-ti-review/17

 

[kyzarvs]

http://www.geforce.co.uk/hardware/desktop-gpus/geforce-gtx-980-ti/specifications
They recommend 600w for one and list the card as needing 250w, so 2 in SLi would be 850 as others have said

 

[Suzuki@1473780084@1473780163]

They do that to cover themself, not because it's the bare minimum. I'm not against a 750W-800W PSU, because it won't make a difference anyways, but if it means spending more money, without getting better quality, then going with less is better, for efficiency as well. Too many people spread misinformation regarding power supplies, anandtech which I listed, is measuring at the wall socket, completely different than actual draw...

 

[TJ Hooker]

From the wall... Assuming it's pulling 388W at the wall socket, then 80% efficient PSU = .8*388 = 310.4 total system. Crysis that is: http://www.anandtech.com/show/9306/the-nvidia-geforce-gtx-980-ti-review/17

Anandtech used a 80+ platinum PSU for that test, so efficiency is going to 90+%, not 80%.

https://www.techpowerup.com/reviews/MSI/GTX_980_Ti_Lightning/21.html
Maximum power draw for stock 980 ti is 277 W (presumably at the wall). They used 80+ gold PSU, so efficiency ~90%, means around 250W actual power use. That means, worse case scenario, stock 980 Ti SLI can draw 500 W. Then add the rest of the system.

 

[turkey3_scratch]

Under stress test, an overclocked 980Ti can in brief moments draw as high as 370W. Just something to be cautious about. Normal stress test is over 300W for an OC 980Ti.

 

[cacatua420]

Man, all these different opinions. I have a cooler master gold 800 w psu. I'm so confused.

 

[Dark Lord of Tech]

What series , most of the Cooler Masters are poor.

 

[cacatua420]

Sorry for miss marking the answer (I'm on my phone). Either way it's the silent pro 800w cooler master gold.

 

[Dark Lord of Tech]

Unselected.

 

[Dark Lord of Tech]

I would want a little more QUALITY power \ EVGA 850w G2 .

 

[cacatua420]

Thanks, just one more question,so my psu wouldn't be able to handle the two gpus at all? Or at least without anymore noise?

 

[Dark Lord of Tech]

I wouldn't run two unless you upgrade the PSU , noise wise with a quality PSU , won't be an issue.

 

[cacatua420]

Damn, I guess I'll just stick with one, because I suck at wiring and I end up having a rats nest also I don't know how to hook up my resivoir to a power supply 🙁

 

[cacatua420]

I thought cooler master was supposed to be really quiet

 

[turkey3_scratch]

I'm not sure if Blackbird was referring to decibel noise or electric noise. Or how either fits in to what he was saying.

 

[cacatua420]

What's the difference between those?