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Radeon 5970?

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July 5, 2010 2:22:34 AM

Hi I am wanting to build a benchmarking system running 3x Radeon 5970's in Triple CrossfireX and need to know what the power consumption would be for just the 3x video cards in watts and what mobo would run it?

Thanks

More about : radeon 5970

July 5, 2010 2:26:20 AM

What would be the power consumption of 3 Radeon 5970 Toxic Edition cards in CrossfireX
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a c 175 U Graphics card
July 5, 2010 3:09:09 AM

Who knows? I believe AMD and Nvidia limit you to 4 GPUs, and the 5970 has 2 on each card. That means you can only run two of them. AMD says you need "850 Watt with two 75W 6-pin and two 150W 8-pin connectors for ATI CrossFireX™ technology in dual mode". As long as you have the connectors a quality 750W or better unit should handle it ok. I would probably shoot for an 850 or even a 1kW just so you don't have any issues.
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July 6, 2010 3:07:57 PM

XFX says you can run up to 4 cards in CrossfireX with their 5970's which is like running 8-way CrossfireX 5870's so I think it would be possible you just have to have a psu and mobo that can handle it.
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a b U Graphics card
July 6, 2010 3:34:28 PM

badoosh said:
XFX says you can run up to 4 cards in CrossfireX with their 5970's which is like running 8-way CrossfireX 5870's so I think it would be possible you just have to have a psu and mobo that can handle it.

Please post a link for that statement. I think your wrong. The term crossfire/crossfireX are interchanged at times.
You can run 4 5870's. Four gpu's
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a c 175 U Graphics card
July 6, 2010 9:09:12 PM

I've only ever heard of 4 GPUs. Doesn't mean someone doesn't allow more then that, but I fail to see why. You get such poor scaling with four I can't believe adding more would help with anything.
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July 8, 2010 3:43:41 PM

Who are you going to believe, someone who says you can't do it or the company saying you can do it with their product?
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a c 175 U Graphics card
July 8, 2010 4:25:40 PM

As notty said, provide the link. It might be something as simple as a misreading.

There is also the case of the 4850 x2, which is something that Sapphire made, not AMD. Its possible that Gigabyte made some franken drivers to run some special cards. As I said in my last post that doesn't make it a good idea.
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