Will my power supply handle GTX 760 SLI?

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stinson1013

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Jun 30, 2012
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I've found many other threads asking this question, but I have yet to find a definitive answer. My power supply is an EVGA Supernova Nex 650G. I am not asking about wattage so much as amperage on the 12V rail. I believe my power supply is capable of 53A on the 12V rail. Is this enough for 760 SLI? What about overclocked? As far as wattage goes, am I correct in thinking 650W is enough for 2 overclocked 760's? A power supply calculator estimated that 2 stock 760's and a moderately overclocked 4670k would require 536W, so surely overclocked 760's won't draw too much more?

To clarify, I am aware that a single 770 or 780 would be preferable to SLI 760, especially considering my PSU. However, due to budget constraints I would prefer to spend less on a single 760 now and add a second one in the future. Any answers to my question are appreciated!
 
Solution
ko888
For a system using two GeForce GTX 760 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 700 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 50 Amps or greater and that has at least four 6-pin PCI Express supplementary power connectors (i.e. Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor while running Furmark Stability Testing). Some of the non-Reference Design GeForce GTX 760 cards have a single 150 Watt 8-pin (e.g. ASUS GTX 760 DirectCU II OC) or two 150 Watt 8-pin (e.g. MSI GTX 760 HAWK) or one 75 Watt 6-pin and one 150 Watt...
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AAndersen

AAndersen

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Jun 27, 2014
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The minimum power for one 760 i 500 watts if you want to run two of them you would probably have to look into a 800 or 850 watt PSU instead as it will give alot of headroom of OC both on the CPU and GPU. you could probably run those two cars SLI'ed but they would not preform very well due to power restriction :)
 
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ko888

ko888

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For a system using two GeForce GTX 760 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 700 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 50 Amps or greater and that has at least four 6-pin PCI Express supplementary power connectors (i.e. Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor while running Furmark Stability Testing). Some of the non-Reference Design GeForce GTX 760 cards have a single 150 Watt 8-pin (e.g. ASUS GTX 760 DirectCU II OC) or two 150 Watt 8-pin (e.g. MSI GTX 760 HAWK) or one 75 Watt 6-pin and one 150 Watt 8-pin (e.g. Gigabyte GTX 760 WindForce OC, EVGA GTX 760 SC w/ACX Cooler, MSI GTX 760 TwinFrozr Gaming) PCI Express supplementary power connectors.
 
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stinson1013

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Jun 30, 2012
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Thanks everyone for the information! Well, considering it looks like I would have to upgrade my power supply in order to run 760 SLI, I think I'll just pick up a better single card when my budget allows, most likely a 770.
 
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