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Will Radeon HD 6850 work with my OCZ PSU

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July 20, 2011 8:36:16 PM

I'm looking to create my first build, and I've been slowly buying all the parts over the past few weeks and now I'm looking at getting a video card. I've settled on the Radeon HD 6850 (either http://www.newegg.com/Product/Product.aspx?Item=N82E16814161363 or http://www.newegg.com/Product/Product.aspx?Item=N82E16814150515). First off, if you have any recommendations on which out of the two is best, i'd appreciate the input, because on Newegg both are 5 stars and are similar review wise.
Second issue is, what sort of power supply would I have to have in order to run either of these cards?? Like I said, I have been picking up parts as I see deals and do research, so I already have an OCZ Fatal1ty 550W PSU http://www.newegg.com/Product/Product.aspx?Item=N82E16817341022&Tpk=OCZ%20fatal1ty and I'm not positive that it would be powerful enough. I also plan to get a Phenom II x4 955 and AM3+ motherboard (If that's relevant). So, if you guys had any recommendations about this and could give a beginner so guidance I'd really appreciate it.

Also, not sure if this matters too, but the RAM I'm going to run is DDR3 1600 Cas-9 http://www.newegg.com/Product/Product.aspx?Item=N82E16820231416
a b U Graphics card
July 20, 2011 8:40:10 PM

G3N3SIS said:
I'm looking to create my first build, and I've been slowly buying all the parts over the past few weeks and now I'm looking at getting a video card. I've settled on the Radeon HD 6850 (either http://www.newegg.com/Product/Product.aspx?Item=N82E16814161363 or http://www.newegg.com/Product/Product.aspx?Item=N82E16814150515). First off, if you have any recommendations on which out of the two is best, i'd appreciate the input, because on Newegg both are 5 stars and are similar review wise.
Second issue is, what sort of power supply would I have to have in order to run either of these cards?? Like I said, I have been picking up parts as I see deals and do research, so I already have an OCZ Fatal1ty 550W PSU http://www.newegg.com/Product/Product.aspx?Item=N82E16817341022&Tpk=OCZ%20fatal1ty and I'm not positive that it would be powerful enough. I also plan to get a Phenom II x4 955 and AM3+ motherboard (If that's relevant). So, if you guys had any recommendations about this and could give a beginner so guidance I'd really appreciate it.

Also, not sure if this matters too, but the RAM I'm going to run is DDR3 1600 Cas-9 http://www.newegg.com/Product/Product.aspx?Item=N82E16820231416


Yes, it will not a problem at all, ur PSU can handle cards up to 560ti no problems. I would also go for the XFX card, lifetime warranty and all.
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July 20, 2011 8:56:31 PM

vilenjan said:
Yes, it will not a problem at all, ur PSU can handle cards up to 560ti no problems. I would also go for the XFX card, lifetime warranty and all.


Great!! I am leaning towards the XFX as well!! Also, not that I'm planning to do this any time soon, but if I was to later on in the future want to Crossfire another 6850, would that be an issue powerwise? My PSU says that its "SLI ready" (which I believe means that it's basically Crossfire ready as well), but I'm not sure if the SLI ready approval is limited to 2 video cards to a certain level.
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a b U Graphics card
July 21, 2011 5:53:50 AM

math time

6850 stock = 130w max x2 = 260W
Top tier CPU = 125W
Fans/HDs/DvD/USB devices - 100w MAX

So worse case, about 485W, which is less than 90% of the PSU capacity. You can work that for a while, but I like to keep my PSUs under 80% for extended life.

So for a single card, its perfect, if you are sure you will Crossfire down the raod, I might go for a 650W unit just to be safer.

Also PSU do degrade over time, quality units do so less than the cheap ones, but keep that in mind.
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July 28, 2011 12:46:58 AM

Best answer selected by G3N3SIS.
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