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PSU advice for 6870 Crossfire

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  • Graphics Cards
  • Crossfire
  • Graphics
Last response: in Graphics & Displays
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a c 214 U Graphics card
December 25, 2011 2:02:23 PM

Phenom ii x4 965 @ 3.8ghz
Gigabyte 990FXA-UD3
XFX 6870
8GB(4x2GB) DDR3 1333mhz
60GB SSD
750GB HDD(7200rpm)
6/120mm and 2/230mm case fans.


I'm looking to get a new PSU to support a 6870 crossfire and I've narrowed it down to these 3.I was wondering which one would be the best.Personally I really like the XFX one because it has all the PCI-E cables needed and I really don't want to have to use molex adapters.My budget is less than $100.

Corsair TX650

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

CoolerMaster GX650

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

XFX Core 650

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


If anyone has a suggestion towards a different PSU please don't hesitate to mention it.

More about : psu advice 6870 crossfire

a b U Graphics card
December 25, 2011 2:31:10 PM

cooler master gx650 best option mine using same brand gx750 for sli gtx580 i've overclocked both my cards and running perfectly.
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a c 175 U Graphics card
December 25, 2011 3:14:47 PM

I like the XFX because it has 4 PCI-E connectors. But this is just a personal opinion and others might have their own opinion. Good luck on buying your new PSU anyway :) 
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a c 175 U Graphics card
December 25, 2011 3:39:29 PM

purple stank said:
Yah I'm pretty sold on the XFX one. I'm just wondering if their are other PSU's that would be good that I haven't thought of yet.

After the MIR then one is looking really good too.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

That would be surely better if you can do MIR. :) 
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a c 143 U Graphics card
December 25, 2011 3:46:33 PM

You already decided to go 6870 x 2 ?
Can't you push your budget a little more ?
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a c 214 U Graphics card
December 25, 2011 3:49:21 PM

What do you mean? I already own a 6870.

This one is actually looking to be really good as well but i'm a little cautious because of the multiple rails.I'm reading Tom's review of it right now.I'll tell you what I think.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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a c 143 U Graphics card
December 25, 2011 3:55:56 PM

purple stank said:
What do you mean? I already own a 6870.

I knew you wanted to CF HD 6870 with another or HD 6850, that's what i meant.
Again, Can you push your budget to get a more quality branded one ?
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a c 214 U Graphics card
December 25, 2011 4:01:56 PM

Well that Cougar PSU seems to do well in the tests but it didn't get a Tom's reccomendation.

I am planning on going for a 6870.This was the one I had in mind.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

The 6870 I have is a reference design and it's BIOS are locked so I cannot O.C. it.So I don't see the need to get a higher end 6870 like a Twin Frozr because I can't O.C. it anyway.I figure I'll just go with another XFX one just in case something goes wrong I still have the lifetime warranty with it.
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a c 143 U Graphics card
December 25, 2011 4:03:59 PM

I'm talking about the PSU :D 
Can't you pay a little higher to get a quality branded PSU ?
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a c 143 U Graphics card
December 25, 2011 4:41:23 PM

NZXT 650W
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
If you don't mind using Molex, i personally trust using it with this unit and using it generally with the 6870s.

Seasonic 620W
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Finally I would go fro the Cougar SX 700, HEC makes most of their PSUs as a small market segment products with no fantastic materials, but the efficiency is pretty good and nothing bad at all reviewed on this unit.
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a c 214 U Graphics card
December 25, 2011 7:18:39 PM

I'm really having a hard time deciding between the XFX and Cougar.They each have something I like,the single +12/v rail and the modular cables.I just wish only one of them had both.
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December 25, 2011 7:31:09 PM

i really think you need a bit more power to safely run a crossfire setup..
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a c 143 U Graphics card
December 25, 2011 8:04:52 PM

XFX got total score of 9 by johny, no reputable reviews on the cougar except the one by toms and it proved reliability. I would actually go with the Cougar.

Your budget is your issue, i was going to recommend the Antec HCG 750W before hearing that you rely on the debate.
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a c 214 U Graphics card
December 25, 2011 8:21:04 PM

It's not the power that worries me I like the Cougar because it's modular but the multiple rails bother me.
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a c 143 U Graphics card
December 25, 2011 8:22:25 PM

Quote:
The XFX unit is the better unit.

That's your opinion, not mine.
And i'm not speaking regarding how many wattage needed, the 620W version has 2 x 8 pins only and Purple doesn't want to use Molex. I'm speaking about Quality and Materials, Antec, Corsair, NZXT are more famous brand names than XFX when it comes to PSUs.
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a c 143 U Graphics card
December 25, 2011 8:32:06 PM

Jonnyguru & Hardwarecauncks didn't state seasonic part like they stated in OCZ and Antec PSUs. And who told you that they are tier 1 PSUs ? Tier 1 PSUs only get the full score 10, like the NZXT, Silverstone, Seasonic...

And any cheap unknown PSU could score 9/10 if it was efficient.
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a c 214 U Graphics card
December 25, 2011 8:33:02 PM

Yah I've also heard that Seasonic makes XFX's PSU's.
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a c 214 U Graphics card
December 25, 2011 8:45:27 PM

Yah I just noticed that.Guess i'll keep looking.
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a c 143 U Graphics card
December 25, 2011 8:55:46 PM

Looks good to me.
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a c 214 U Graphics card
December 25, 2011 9:16:17 PM

Thank you so much guys for all your help.
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!