Crossfire 2 7850's or Single 7950?

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Roids0777

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Sep 27, 2013
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Hello guy's,

I was wondering what your suggestions would be.

I have a Asus Sabertooth 990fx R 2.0 Motherboard with 8 gigs of Gskill 1333 ram and a FX 8320 8 core cpu. I have a corsair GS600 600 watt psu.

I have a 2 gig 7850 right now and I was looking to buy another one and crossfire them in my setup. I have been reading multiple sites and It is getting mixed feedback. Would it be better to just get a 7950 instead of another 7850 to cfx them? I checked out a couple benchmark charts and It seems that 2 7850's are better than 1 7950 for gaming. What are your guys thoughts? Would I run into any cpu bottlenecks? and would my psu be able to handle the load? Those are other questions I have.

Thank you,
Tony
 
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geofelt

geofelt

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Oct 9, 2006
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Your 600w psu should be sufficient.
A consideration in gaming satisfaction is the inconsistency of response times or lagging in dual gpu situations.
Here is one of the early articles on the subject.
The bottom line is that dual cards will show better benchmark FPS numbers but a single card will give you a better playing experience.
http://techreport.com/review/23981/radeon-hd-7950-vs-geforce-gtx-660-ti-revisited

My recommendation is to use the strongest single gpu card you can, so long as it will do the job.
 
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boucleinfinie

boucleinfinie

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Feb 22, 2012
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I think the limitation here would be the 7850s are cutting it close for your psu, as the recommended minimum for two 7850s is 600w, especially if you are overclocking these things. You might want to look at a 800w psu with the money your not spending on the 7950. It ends up about the same price but the price/performance ratio goes up, if you could handle the potential problems with crossfire.

http://pcpartpicker.com/p/1IbUU

It's not necessary; you could do it without upgrading your psu, I am sure, but that is up to you.
 
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Roids0777

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Sep 27, 2013
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What kind of problems are we talking about?
 
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Derbixrace

Derbixrace

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May 26, 2008
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microstuttering= even if you have nice FPS you will notice small lags and it will also reduce your performance in MP FPS games, also some games dont use CF/SLi at all. and worst case scenario is that a game wont even work in CF/sli ( very rare though)


 
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geofelt

geofelt

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It is called variously lagging microstutterin or...
Benchmark minimum and average FPS numbers did not tell the whole story.
Here is an early article looking at that:
http://techreport.com/review/23981/radeon-hd-7950-vs-geforce-gtx-660-ti-revisited

 
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