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How much wattage is good for this 2X 7970 build?

Hey guys... just wondering about something that's been driving me mad for some time...
I'm thinking of building a gaming PC soon... here are the specs, just want to know what would be a suitable power supply, since all the PSU calculators give me diffent PSU recommendations...

CPU: AMD FX 8350
dual 7970s crossfire
crosshair V formula motherboard
samsung 830 128 GB SSD
2X2 T.B Seagate Barracuda @7200 RPM
Blu-ray reader/DVD writer
4X4 GB 1866MHZ ram
Antec water cooling kit
I'm thinking of an OK overclock, just reasonable stuff: CPU @4700MHZ and GPU just up a notch.
So guys, what PSU is good?
Thanx
10 answers Last reply Best Answer
More about wattage good 7970 build
  1. I might be overstating the power supply wattage but I'm going to go with something between 800-1000 watts to be on the safe side. Never hurts to have extra wattage. That being said the specific power supplies I had in mind are the Corsair HX-850 and the HX-1050.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139011&Tpk=HX%20850

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139034&Tpk=corsair
  2. Normally, I recommend a good 750w PSU for SLI/Crossfire setups but that card will pull some power. I would go with a good 1k PSU to be safe.

    Although the "needed" wattage is probably somewhere between a good 750 and 1k.
  3. overclocked fx 8350 takes up a ton of power
  4. dsub1994 said:
    Hey guys... just wondering about something that's been driving me mad for some time...
    I'm thinking of building a gaming PC soon... here are the specs, just want to know what would be a suitable power supply, since all the PSU calculators give me diffent PSU recommendations...

    CPU: AMD FX 8350
    dual 7970s crossfire
    crosshair V formula motherboard
    samsung 830 128 GB SSD
    2X2 T.B Seagate Barracuda @7200 RPM
    Blu-ray reader/DVD writer
    4X4 GB 1866MHZ ram
    Antec water cooling kit
    I'm thinking of an OK overclock, just reasonable stuff: CPU @4700MHZ and GPU just up a notch.
    So guys, what PSU is good?
    Thanx


    Xfx 850w
  5. Best answer
    Actually because of price i would go for http://www.newegg.com/Product/Product.aspx?Item=N82E16817703028 it's a great deal
  6. bigcyco1 said:
    Actually because of price i would go for http://www.newegg.com/Product/Product.aspx?Item=N82E16817703028 it's a great deal

    +1 to this.
    If you look closely at the specs, this is actually a 1000w unit.
  7. get 1000watts. Cheaps are from OCZ. But I would recommend corsair if u had the cash. I would also recommend you to get 2 670 as they consume much less power.
  8. Well I wont lie to you but the PCP&C power supply listed is at a fantastic price right now. It's also a top notch brand, take a look at this tier list of power supplies and it falls within tier 2 just like the power supplies I listed. So I would go with Bigcyco's power supply as well.
  9. Best answer selected by dsub1994.
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