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What Power Supply for GTX 660 (non Ti) Sli

Tags:
  • Power Supplies
  • Intel i5
  • SLI
  • Components
  • Gtx
  • Graphics Cards
Last response: in Components
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May 11, 2014 8:56:49 AM

ok so here are my specs

i5-3470 3.2 ghz
gtx 660
CX500 PSU
Gigabyte Z77 DS3H

I wanna buy a new mobo, another gtx 660, and a quality power supply. its recommended to get a 700watt or so psu. I found this 850 watt psu for 50 bucks and it sounds great but the low price has me thinking is it good.......http://www.ebay.com/itm/NEW-850W-SLI-Silent-140mm-Fan-A...

More about : power supply gtx 660 sli

a c 97 ) Power supply
a b U Graphics card
May 11, 2014 9:00:14 AM

750 watts (or higher) Corsair HX or AX series - Seasonic is also fine.
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May 11, 2014 9:03:41 AM

Sure but the one i provided a link for, is it good?
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a b ) Power supply
a b U Graphics card
May 11, 2014 9:08:03 AM

I have a simple rule about PSUs.
Step 1:
If you want 500W - don't pay less than 50 bucks
If you want 600W - don't pay less than 60 bucks
If you want 700W .... etc, etc.
(Except if there is a wild promo or something)

Step 2:
Best brands and models that I can immediately think of - Seasonic, XFX (made by Seasonic), Corsair (TX RM HX AX AXi or worst case - GS if you are really on a budget), Be quiet!, Rosewill Capstone series and few others I can't remember now. Stick to those brands and models and you will be happy.
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May 11, 2014 11:57:19 AM

Thanks. Im looking for something that will handle the gtx 660 sli and cost less than 85 dollars. Thanks
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Best solution

a c 1218 ) Power supply
a c 578 U Graphics card
May 11, 2014 1:12:56 PM

For a system using two GeForce GTX 660 (non-Ti) graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 600 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 36 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) is the most critical factor.

XFX TS Series 550W (P1-550S-XXB9 / XPS-550W-SEW)
• OEM: Seasonic
• maximum combined +12 Volt continuous current rating of 44 or 45 Amps <===== More than sufficient for your intended system configuration
one 6-pin and one (6+2)-pin PCI Express supplementary power connectors
• Modular Output Cables: No
• Official Intel Haswell Compliance: Yes
• 80 PLUS BRONZE Efficiency Certification
• 5 Year Limited Warranty
• Link: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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May 11, 2014 6:08:20 PM

ko888........are you sure? 550 watts doesnt seem like enough. Will it cover the two 660s barely or will it have a little more room for expansion?
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a c 1218 ) Power supply
a c 578 U Graphics card
May 11, 2014 7:36:30 PM

JamesCrimson said:
ko888........are you sure? 550 watts doesnt seem like enough. Will it cover the two 660s barely or will it have a little more room for expansion?

Absolutely sure. Take a look at the following system power consumption graph. You will see a heavily overclocked Intel i7-3960X Extreme Edition 130 Watt TDP CPU with two, what I assume to be, MSI GeForce GTX 660 Twin Frozr graphics cards in 2-way SLI mode. The total system power consumption is 482 Watts for that system. Most of it is drawn from the +12V rail(s).

Your system configuration will definitely draw a lot less power since you're using a stock clocked 77 Watt TDP CPU and a less power hungry motherboard.


You can move up to this one if you want more spare capacity, since it's still within your budget:

XFX Pro Series Core Edition 650W (P1-650S-NLB9 / XPS-650W-SEW)
• OEM: Seasonic
• maximum combined +12 Volt continuous current rating of 53 Amps
two 6-pin and two (6+2)-pin PCI Express supplementary power connectors
• Modular Output Cables: No
• Official Intel Haswell Compliance: Yes
• 80 PLUS BRONZE Efficiency Certification
• 5 Year Limited Warranty
• Link: http://www.amazon.com/dp/B0045L5LGI
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