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Is a 650 Watt PSU good enough for my build?

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  • Power Supplies
  • Gtx
  • Components
  • Product
Last response: in Components
July 3, 2012 2:25:21 PM

ASRock Fatality Z77 Performance
GeForce GTX 570 2GB
Intel Core i7-2600 3.4ghz
G.SKILL Ripjaws 4 x 4GB

I'm just a little worried about the GPU. I'm upgrading from an HD 5770 and based on hwcompare, the GTX is going to require 103% more power. Is 650 watt still enough?

More about : 650 watt psu good build

a b ) Power supply
July 3, 2012 2:37:00 PM

Yeah easily.
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a c 122 ) Power supply
July 3, 2012 5:32:50 PM


For a system using a single GeForce GTX 570 graphics card NVIDIA specifies a minimum of a 550 Watt or greater power supply that has a combined +12 Volt continuous current rating of 38 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT a crucial factor in power supply selection! Total Continuous Amperage Available on the +12V Rail(s) is the most important.
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