Topic Title: CrossFire help
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Created On: 04/15/2013 08:29 PM
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 04/15/2013 08:29 PM
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putop
Peon

Posts: 1
Joined: 04/15/2013

Can i instal an hd4870 + hd7870 graphic card and put them in crossfire mode?

If i can is there any loss of performance or any other inconvenience?

 

Best regards
 

 04/15/2013 08:45 PM
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BatCat
Peon

Posts: 29
Joined: 04/15/2013

Long story short;  /\/ope!

 

Minimum, two refferance cards the same, best if two cards from same company.

 

*Some* of the newer cards of same family can. Like integrated vid with discrete of same family.

 

48oo and 78oo long way apart, like 3rd cousins.

 

<wave>

 



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 04/18/2013 02:54 AM
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-rascal-
Cookie Monster

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Joined: 01/15/2011

As BatCat said, you CANNOT Crossfire the two.

They are COMPLETELY different chips from completely different generations.

You can only Crossfire a HD 4870 with cards that are also HD 48xx

(a) another 4870  (b) a HD 4870X2 (c) Radeon HD 4850 (d) Radoen HD 4890 (e) radoen HD 4830

 

Same rule applies to the HD 7870.

(a) Another HD 7870 (b) HD 7850

 

Crossfire Compatibility Chart: http://sites.amd.com/PublishingImages/Public/Graphic_Illustrations/WebBannerJPEG/AMD_CrossfireX_Chart_1618W.jpg



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