Sign in with
Sign up | Sign in
Your question

Sli power requirement?

Last response: in Graphics & Displays
Share
June 27, 2013 11:15:53 PM

Right now i have a single gtx 660 EVGA sc, but i want to sli it with another of the same card, what wattage would be recomended for that. Or, since the 760 was released recently if i used that or a 770 instead what psu would you recommend for that. I couldnt find anything for this on Nvidia's website.

More about : sli power requirement

June 27, 2013 11:30:58 PM

jwhit5219 said:
Right now i have a single gtx 660 EVGA sc, but i want to sli it with another of the same card, what wattage would be recomended for that. Or, since the 760 was released recently if i used that or a 770 instead what psu would you recommend for that. I couldnt find anything for this on Nvidia's website.


I have a GTX660 SLI setup and I use a 560w GOLD powersupply.

My best guess a 770 will use around 400w for a single card and 600-650w for SLI
m
0
l
June 27, 2013 11:33:20 PM

jwhit5219 said:
Right now i have a single gtx 660 EVGA sc, but i want to sli it with another of the same card, what wattage would be recomended for that. Or, since the 760 was released recently if i used that or a 770 instead what psu would you recommend for that. I couldnt find anything for this on Nvidia's website.


What's your motherboard?... 660 SLI will probably bring around 550w..... So a good 650w or 700w PSU will do the job.
m
0
l
Related resources
June 27, 2013 11:50:57 PM

aredflyingbird said:
jwhit5219 said:
Right now i have a single gtx 660 EVGA sc, but i want to sli it with another of the same card, what wattage would be recomended for that. Or, since the 760 was released recently if i used that or a 770 instead what psu would you recommend for that. I couldnt find anything for this on Nvidia's website.


What's your motherboard?... 660 SLI will probably bring around 550w..... So a good 650w or 700w PSU will do the job.


Right now, I'm 770's in SLI, the Minimum is at least a 750W PSU, but if you're overclocking which I did, you need 850W-900W
m
0
l
June 27, 2013 11:58:16 PM

johnvonmacz said:
aredflyingbird said:
jwhit5219 said:
Right now i have a single gtx 660 EVGA sc, but i want to sli it with another of the same card, what wattage would be recomended for that. Or, since the 760 was released recently if i used that or a 770 instead what psu would you recommend for that. I couldnt find anything for this on Nvidia's website.


What's your motherboard?... 660 SLI will probably bring around 550w ..... So a good 650w or 700w PSU will do the job.


Right now, I'm 770's in SLI, the Minimum is at least a 750W PSU, but if you're overclocking which I did, you need 850W-900W


!!?! a 750w PSU is more than enough even with overclocking. Look at this chart, http://www.legitreviews.com/article/2210/11/ it pulls around 552w at full load with a 3960x. You won't need a 850-900watts.
m
0
l
June 28, 2013 12:11:06 AM

aredflyingbird said:
johnvonmacz said:
aredflyingbird said:
jwhit5219 said:
Right now i have a single gtx 660 EVGA sc, but i want to sli it with another of the same card, what wattage would be recomended for that. Or, since the 760 was released recently if i used that or a 770 instead what psu would you recommend for that. I couldnt find anything for this on Nvidia's website.


What's your motherboard?... 660 SLI will probably bring around 550w ..... So a good 650w or 700w PSU will do the job.


Right now, I'm 770's in SLI, the Minimum is at least a 750W PSU, but if you're overclocking which I did, you need 850W-900W


!!?! a 750w PSU is more than enough even with overclocking. Look at this chart, http://www.legitreviews.com/article/2210/11/ it pulls around 552w at full load with a 3960x. You won't need a 850-900watts.


look at the article again, at the power consumption section:

The NVIDIA GeForce GTX 770 SLI setup uses roughly 20 Watts more power at idle than a single card and about 200 Watts more at load! The NVIDIA GeForce GTX 770 2GB reference card has a TDP of 230W, so this is right about where we expected to see the 2-way SLI configuration land. NVIDIA recommends at least a 600 Watt power supply with a minimum +12V current rating of 42A for one GeForce GTX 770 video card. Since each card has a 250W TDP, it is safe to assume that you should have a 850W or larger power supply for a setup like this.

Even guru3D suggested 800W or higher for a 770 SLI setup.
Anyway, I'm currently running an OC version of GTX 770's not the reference one.
m
0
l
June 28, 2013 12:31:24 AM

johnvonmacz said:
aredflyingbird said:
johnvonmacz said:
aredflyingbird said:
jwhit5219 said:
Right now i have a single gtx 660 EVGA sc, but i want to sli it with another of the same card, what wattage would be recomended for that. Or, since the 760 was released recently if i used that or a 770 instead what psu would you recommend for that. I couldnt find anything for this on Nvidia's website.


What's your motherboard?... 660 SLI will probably bring around 550w ..... So a good 650w or 700w PSU will do the job.


Right now, I'm 770's in SLI, the Minimum is at least a 750W PSU, but if you're overclocking which I did, you need 850W-900W


!!?! a 750w PSU is more than enough even with overclocking. Look at this chart, http://www.legitreviews.com/article/2210/11/ it pulls around 552w at full load with a 3960x. You won't need a 850-900watts.


look at the article again, at the power consumption section:

The NVIDIA GeForce GTX 770 SLI setup uses roughly 20 Watts more power at idle than a single card and about 200 Watts more at load! The NVIDIA GeForce GTX 770 2GB reference card has a TDP of 230W, so this is right about where we expected to see the 2-way SLI configuration land. NVIDIA recommends at least a 600 Watt power supply with a minimum +12V current rating of 42A for one GeForce GTX 770 video card. Since each card has a 250W TDP, it is safe to assume that you should have a 850W or larger power supply for a setup like this.

Even guru3D suggested 800W or higher for a 770 SLI setup.
Anyway, I'm currently running an OC version of GTX 770's not the reference one.


For a system using two GeForce GTX 770 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 850 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 62 Amps or greater and that has at least two 6-pin and two 8-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most important factor. A 750 with 62 amps or greater amps is fine. Also, the video card's listed requirements have plenty of overhead, they expect you to get a cheaper quality PSU.
m
0
l
June 28, 2013 12:44:01 AM

aredflyingbird said:
johnvonmacz said:
aredflyingbird said:
johnvonmacz said:
aredflyingbird said:
jwhit5219 said:
Right now i have a single gtx 660 EVGA sc, but i want to sli it with another of the same card, what wattage would be recomended for that. Or, since the 760 was released recently if i used that or a 770 instead what psu would you recommend for that. I couldnt find anything for this on Nvidia's website.


What's your motherboard?... 660 SLI will probably bring around 550w ..... So a good 650w or 700w PSU will do the job.


Right now, I'm 770's in SLI, the Minimum is at least a 750W PSU, but if you're overclocking which I did, you need 850W-900W


!!?! a 750w PSU is more than enough even with overclocking. Look at this chart, http://www.legitreviews.com/article/2210/11/ it pulls around 552w at full load with a 3960x. You won't need a 850-900watts.


look at the article again, at the power consumption section:

The NVIDIA GeForce GTX 770 SLI setup uses roughly 20 Watts more power at idle than a single card and about 200 Watts more at load! The NVIDIA GeForce GTX 770 2GB reference card has a TDP of 230W, so this is right about where we expected to see the 2-way SLI configuration land. NVIDIA recommends at least a 600 Watt power supply with a minimum +12V current rating of 42A for one GeForce GTX 770 video card. Since each card has a 250W TDP, it is safe to assume that you should have a 850W or larger power supply for a setup like this.

Even guru3D suggested 800W or higher for a 770 SLI setup.
Anyway, I'm currently running an OC version of GTX 770's not the reference one.


For a system using two GeForce GTX 770 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 850 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 62 Amps or greater and that has at least two 6-pin and two 8-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most important factor. A 750 with 62 amps or greater amps is fine. Also, the video card's listed requirements have plenty of overhead, they expect you to get a cheaper quality PSU.


Ok you got a point. Well still, it doesn't hurt if he gets an 850W psu especially if it's pretty much the same price when getting a 750W psu.
m
0
l
!