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Is it possible to crossfire a Radeon HD 7870 and a Radeon HD 7750

Last response: in Graphics & Displays
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February 16, 2013 2:43:06 PM

I recently bought a Radeon HD 7870 for my computer and i was wondering if i could cross fire my graphics card i already have with it. It is a Radeon HD 7700 i have a 700 watt power supply. I am just wondering if it is even worth it and if it will damage my processor. I have a ASROCK N68-VS3 FX mother board and a AMD FX(tm)-4100 Quad core Processor. I hope this tells you if i can crossfire these or not or if its even worth it thanks =)
a c 82 U Graphics card
February 16, 2013 2:48:32 PM

no.

you need 2 of the exact same cards to run in crossfire.

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February 16, 2013 7:51:59 PM

That's only for nvidia, it will work.
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a c 173 U Graphics card
February 16, 2013 9:07:19 PM

zcosmin said:
That's only for nvidia, it will work.

no. you are wrong. you cant crossfire any cards, they have to be from the same gpu level. like 7870 + 7850, or 7770 + 7750.
even if you could crossfire a 7870 and 7750 it would hinder performance, all the frames would be out of sync and you would get serious stuttering, even more-so than crossfiring 2 o the same card which still gives stuttering on occasion.
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February 16, 2013 9:43:31 PM

Take in to consideration that a 7770 is pretty much 1/2 of a 7870 spec wise. 7770 has 640 shaders on a 128 bit interface, while a 7870 has 1280 shaders on a 256 bit interface. A single 7870 should be more than enough performance for 1080P gaming. you could use your 7770 for and extra display or put it aside for another PC.
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a c 82 U Graphics card
February 17, 2013 3:19:38 AM

theres no point in crossfire 7850 with a 7870. dont have the same specs. u want to crossfire same model and card.
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February 26, 2013 11:30:51 AM

iceclock said:
theres no point in crossfire 7850 with a 7870. dont have the same specs. u want to crossfire same model and card.


You're wrong. 7850 and 7870 are the same GPU family and it is entirely possible to CF them with good result.

Check the compatibility chart here:

http://sites.amd.com/PublishingImages/Public/Graphic_Il...
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