CFX 7970

[greeksalad84]

new here so might sound like a nooooob question!
can i slip in sapphire 7970 with a gigabyte 7970 for a crossfire configuration ?

thx alot

 

[co0ldown]

Yes, tho if the gigabyte is clocked at 1000mhz core clock and the sapphire at 950mhz, then both of them will run at 950mhz. Just overclock one of them so you have both running at the same speed!

 

[hapkido]

Both previous posters are partially wrong.

Yes you can crossfire ANY 7970 with any other 7970. You don't have to mess with clockrates, and one card won't downclock.

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

 

[greeksalad84]

thx for the prompt replies

sapphire @ 925 and
gigabyte @ 1000

please advise!

 

[greeksalad84]

Are you talking about a Sapphire reference card + Gigabyte windforce card?

You should be fine with those - both are just reference PCBs.

as shown on the card's specs page ?

 

[hapkido]

That link has nothing to do with anything. You can't crossfire an XFX DD BE 7970 with an MSI Lightning 7970... Tried it, spent a month trying to get it working, couldn't get it working with consistency...

When you get two cards that have very different BIOS-es, you *can* get problems.

The site I linked is very relevant.
"HD 7970 (All variants)" crossfires with 7970 and 7950.

I don't know why you had problems with yours, just saying per AMD's documentation, it shouldn't matter. Crossfire is pretty forgiving what you can combine.

 

[greeksalad84]

thx guys for the + feedback