HD 5850 Power Supply

Hello,

I have a little question about the HD 5850, I have the a Cooler Master eXtream Power Plus RS500, it's a 500 Watts PSU, will it be enough for the SAPPHIRE Radeon HD 5870 ?
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More about 5850 power supply
  1. HD5870 requirements(500W): http://www.amd.com/uk/products/desktop/graphics/ati-radeon-hd-5000/hd-5870/Pages/ati-radeon-hd-5870-system-requirements.aspx

    Most PSUs today have efficiency of 80+, whereas, the efficiency of eXtreme Plus series is merely 70+. However, it should be enough for the HD5870.

    I would get a Corsair HX650 or HX750 if were you.
  2. Yours is not a very reliable PSU.
    If it is old then change it.

    But it will take the load of HD5850.
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