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Is the ICS ModXStream Pro 500 enough for CrossFire 4770?

Last response: in Components
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May 10, 2009 11:47:50 PM

Buying two hd 4770 for crossfire, it says it requires 550 watts for crossfire, but sometimes its overrated... I'm wondering if the OCZ ModXStream Pro OCZ500MXSP 500W is enough for those two cards. If it isn't then I'll buy the 550 version.
a b ) Power supply
May 11, 2009 12:01:16 AM

Either one should have plenty of power.
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May 11, 2009 12:05:28 AM

So that means that ati is really saying if you have a low quality -like rosewill- psu, you should at least get 550?
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May 11, 2009 12:23:30 AM

You sure that the 500 psu is enough for 2 4770 in crossfire? On the ati site it says it recommends 450 for single, and 550 for crossfire.
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May 11, 2009 2:02:49 AM

The 550W OCZ should be the Fatal1ty right? That'll provide enough for the 4770s.
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a c 248 ) Power supply
May 11, 2009 2:18:19 AM

According to a technical review two ASUS Radeon 4770 video cards in Crossfire mode maxed out at 355 watts. Here's the link to the power consumption page:

http://www.legionhardware.com/document.php?id=828&p=8

According to a different review one Radeon 4770 video card used 239 watts during a Crysis gaming session. Here's the link to that power consumption page:

http://www.bit-tech.net/hardware/graphics/2009/04/28/am...

We have another technical review where a single 4770 was used with an overclocked quad core. The power measurement was done at the wall outlet and included all components inside the pc case. At full load the pc drew 369 watts. Here's a link to the power consumption page:

http://www.pureoverclock.com/review.php?id=744&page=17

Finally we have one more review where a single 4770 was used during a game of S.T.A.L.K.E.R. - Clear Sky at 1280x1024 resolution with high image quality. The total power consumption for all components inside the pc case case was 245 watts. Here's the link:

http://www.legitreviews.com/article/963/10/

I'm scratching my head over this one due to the different methods used to measure power consumption. It's a little more difficult to interpret the results.
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May 11, 2009 2:34:42 AM

I'll just go with the fat1lty 550 just to be safe!
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a b ) Power supply
May 11, 2009 3:40:11 PM

BFG LS-550 or Corsair VX550 are better quality.
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