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Is my PSU enough to power a HD7870 or 7950?

hi

just wondering if my Seasonic 560w gold PSU is enough to power a single hd7870 or 7950? or a gtx 670 video cards?

i5-3470
deepcool pro (heatsink)
msi h77
500 wd green hardrive
8gb ares
lite-on dvd driver
corsair 500r

thank you
9 answers Last reply Best Answer
More about power hd7870 7950
  1. Is it the X-Series 560W gold? If yes, it should have a 46A rating at the 12V rail. If that is the case, it is perfectly adequate of powering all of the cards you mention. One at a time ofc :P
  2. Yes. That's the PSU I have, and it is running my HD7870 with an overclocked Phenom II without any trouble at all.

    (not for long though; will be moving that card into my i5 rig as early as this weekend)
  3. No, you need a CoolerMaster GX-750W, wanna exchange ? :D

    Yes it's enough.
  4. No issues there. Will work unless you forget to connect power cables to your 7950 :)
  5. okay thanks you guys
  6. Best answer
    nVidia itself recommend 500W for a single 670.You'll be fine
    http://www.nvidia.in/object/geforce-gtx-670-in.html#pdpContent=2 Here is Guru3D's power supply recommendation:

    Radeon HD 7950 - On your average system the card requires you to have a 500 Watt power supply unit.
    Radeon HD 7950 Crossfire - On your average system the cards require you to have a 700 Watt power supply unit as minimum.

    If you are going to overclock GPU or processor, then we do recommend you purchase something with some more stamina.

    System in IDLE = 165W
    System Wattage with GPU in FULL Stress = 300W
    Difference (GPU load) = 138W
    Add average IDLE wattage ~3W
    Subjective obtained GPU power consumption = ~ 138 Watts

    Mind you that the system wattage is measured at the wall socket. Source: http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&cad=rja&ved=0CFYQFjAG&url=http%3A%2F%2Fwww.guru3d.com%2Farticle%2Fhis-radeon-hd-7950-review%2F8&ei=op1KUNHWD8v6qAGt6IG4Cw&usg=AFQjCNGEjw0EzJ2bjJUvf5QlNquKej2_9g&sig2=SKMJjR_bAgZLMXdkZ2D_LQ
  7. Best answer selected by tukbol7.
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