1. #1

    Regarding 6970 Crossfire

    Just a quick question, can my 850w Corsair PSU handle having 2 of those cards?
    http://www.newegg.com/Product/Produc..._-Pst02Descrip

  2. #2
    Brewmaster ThatCanadianGuy's Avatar
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    As far as i know, yes. I think each card take up around 250? Not 100% sure though.

    EDIT: Crossfire with them takes about 600W

  3. #3
    I was reading Crossfired they take 442w roughly. Idk how much the system itself needs though.

  4. #4
    I believe that it should, but it would be best if you link the good fellows with more knowledge your current computer specs and which 6970s you want to crossfire.

  5. #5
    The Patient MalazanFan's Avatar
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    I believe it should be able to, but more info would be helpful. PC specs, do you overclock your CPU, plan on OCing your GPUs, do any Folding@Home, etc?

    Edit: Beaten to the punch

  6. #6
    Cooler: CPU COOL NOCTUA|NH-D14 R 1

    Video Card: VGA XFX|HD-697A-CNFC HD6970 2GB

    Memory: 4G|GSKILL F3-12800CL9S-4GBRL X 2

    PSU: CORSAIR| CMPSU-750HX 750W

    Processor: INTEL|CORE I7 2600K 3.4G 8M

    MoBo: ASUS|P8Z68-V PRO Z68 LGA1155

    Hard drive: 1T|WD 7K 32M SATAIII WD10EALX

    Haven't overlocked yet, was open to the idea, but nothing major.
    Last edited by Razorlor; 2011-11-18 at 04:03 AM.

  7. #7
    With a 650W PSU its fine with one card a I5 OC + watercooler +9 fans and all the other usual thing (3 HDD) with 6950 OC higher than any 6970 (more power needed) I am pretty confident that a 850W PSU would be way enough.

  8. #8
    Quote Originally Posted by McFrotton View Post
    With a 650W PSU its fine with one card a I5 OC + watercooler +9 fans and all the other usual thing (3 HDD) with 6950 OC higher than any 6970 (more power needed) I am pretty confident that a 850W PSU would be way enough.
    Good to hear, wouldn't mind another opinion or 2.

  9. #9
    AnandTech GPU Power Consumption
    This is measured at the wall (so take off ~10-20% for PSU efficiency) for a full system, including IIRC an overclocked i7-950 @ 3.8GHz, so this is pretty representative of what you'll be pulling with an overclocked 2600K. This is also with FurMark running, a GPU power hog... with Crysis it goes down another 40 watts.

    Your 850W is fine. My 650W would be fine, really.
    Super casual.

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