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What power supply should i get?

What power supply should I get? I have a:
intel core i7 3770
16gb standard ram
2 TB hard drive

And I am looking to buy, for a graphics card, either a:
ASUS HD7770-2GD5 Radeon HD 7770 GHz Edition 2GB 128-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card
or
ASUS GTX650TIB-DC2OC-2GD5 GeForce GTX 650 Ti BOOST 2GB 192-bit GDDR5 PCI Express 3.0 HDCP Ready SLI Support Video Card
5 answers Last reply Best Answer
More about power supply
  1. I would recommend first determining the wattage needs of your computer (you might want to select based on upgrades you might get), then add 10-20% to the wattage.

    I would recommend any power supply from Antec, Corsair or Seasonic. 80+ bronze, gold or platinum are the way to go for the rating.
  2. This should help you
    http://www.johnnylucky.org/power-supplies/gpu-power-requirements.html

    With either buy a good 500W will suffice.
  3. Best answer
    GeForce GTX 650 Ti Boost - On your average system the card requires you to have a 500 Watt power supply unit.
    Radeon HD 7770 - On your average system the card requires you to have a 450 Watt power supply unit. I recommend you buy this since it's on sale http://www.newegg.com/Product/Product.aspx?Item=N82E16817151096
  4. ^Good find, a top quality unit, and it'll cope with significant upgrades, all for the price of a POS unit.
    My mate Mr T says:
    WELL, WHAT ARE YOU WAITING FOR CRAZY MAN!
    GET THE PSU, FOOL!
  5. Agreed. I just recommended this same one about 10 minutes ago on another post. It is cheaper right now than a good 500W.
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