How much wattage do i need for this build?

Hello! I'm trying to build my first gaming computer and i was wondering how much wattage i would need for my power supply. I'm on a budget though, so not a wattage to extreme or anything. I have these components:

EVGA GeForce GTX 660 SUPERCLOCKED 2048MB GDDR5 DVI mHDMI DP Graphics Card 02G-P4-2662-KR

Intel Core i5-3570K Quad-Core Processor 3.4 GHz 4 Core LGA 1155 - BX80637I53570K

SAMSUNG 830 Series 2.5-Inch 128GB SATA III MLC Internal Solid State Drive (SSD) MZ-7PC128B/WW

CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3

ASRock Z77 Pro4 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard

Any information would be helpful! Once again, im asking for how much wattage i should get given these components. Thank you!
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More about wattage build
  1. Best answer
    500-550W would be more than enough for this setup, don't go higher than that unless you're planning to add multiple video cards in SLI later.

    Antec, Corsair, Seasonic, and XFX are usually safe brands to go with. Try one of these two:
  2. +1
  3. I have close to the same build and I'm using about 450 watts. I could add another 660 and still be ok with corsair cx600.
  4. A system with a single GTX 660 needs a recommended 430w power supply. To run 2 cards in Sli a 620w power supply is recommended.

    Stick with Corsair, Seasonic, PC Power and Cooling, XFX, Silverstone, Enermax, OCZ and Antec for quality models.
  5. Best answer selected by tomminater.
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