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520W enough?

I plan on purchasing a case and PSU for christmas (I figure it's a good idea to wait to purchase the rest of the system at once, so the hardware is all up to date). I've decided on the HAF 912 for the case, but I am a little confused on just how many watts are going to be enough for the PSU. I think there are going to be some cpu/gpu refreshes early next year, so obviously the hardware will change, but the type of stuff I'm looking at now is the AMD Phenom II X4 955/965 and probably a Geforce GTX 460. Again, hardware will change, but that's the level that I'm looking at. I also don't plan on SLI/Crossfire in the future. The specific 520W PSU I was looking at was this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16817151094 Since this will be a gift, I don't want to ask for way more than I'll ever need.

Thanks in advance for your help.
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More about 520w enough
  1. You have chosen an excellent power supply, with 40 amps on the 12v rail. It should be more than adequate, and might even run 2 video cards, depending on which you choose.
  2. o1die said:
    You have chosen an excellent power supply, with 40 amps on the 12v rail. It should be more than adequate, and might even run 2 video cards, depending on which you choose.

    Thanks for the quick reply! It's great peace of mind to hear that. :)
  3. Best answer
    I have an OC'd Q9550 (similar to the 955) and a GTX260 (similar load to the GTX460). Loaded with 3 instances of Prime95 and one 3DMark95, it pulls 375 watts from the wall and 300 watts from the PSU.

    A 520 watt Seasonic will give you plenty of power in reserve.
  4. Best answer selected by tatsuyame.
  5. This topic has been closed by Mousemonkey
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