What size of PSU do I need?

Hello, I am planning out my new Desktop build, and am wondering what size of PSU I would need.

My specs so far are:

Case - Cooler Master Haf XM
CPU - Intel 3570k Ivy Bridge
GPU - Radeon 7950
Hard Drive - Western Digital Caviar Black 1TB
RAM - Corsair 8 (or maybe 12) gb Vengance
Motherboard - ASUS Sabertooth Z77
CPU Cooler - Cooler Master V8

Not sure what PSU would be adequate for this build.

I am planning on doing small overclocking, nothing serious.

Thank you!
3 answers Last reply Best Answer
More about what size need
  1. Best answer
    Your build is rated for 500w PSU, 700w if you plan to Crossfire in future.
  2. Best answer selected by Brmiller13.
  3. btw any reason you want the 7950 instead of the gtx 670? 670 will out perform the 7950 at about the same price range.

    Also if this is a gaming rig 8gb is plenty.
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