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4850 and 4770 possible crossfire?

Forum Graphic & Displays : Graphics Cards - 4850 and 4770 possible crossfire?

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NITROGENarcosis   05-05-2009 at 05:39:19 AM

Is it possible to crossfire a 4850 and a 4770? They have similar performance so I would think they would crossfire together well.

Thanks

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ravenware   05-05-2009 at 05:46:12 AM
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Supposedly, but I am not sure what kind of results you would get

 

http://game.amd.com/us-en/content/ [...] _chart.jpg

 

errr. my bad. Thought that was a 4870 you had listed.


Message edited by ravenware on 05-05-2009 at 05:55:52 AM
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Bronze Graphics badge EXT64   05-05-2009 at 05:53:23 AM
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I thought that you couldn't have different clocks though (or it would make them match)? I don't know, there are enough issues with crossfire as is, mixing GPU/Ram just adds another potential for error.

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megamanx00   05-05-2009 at 05:54:26 AM
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I'm pretty sure that's a no. You can crossfire any 4800 series card with any other 4800 series card, but since the 4770 uses a new piece of silicon it's doubtful that they bothered to enable it in the drivers. Even if it did work the results would be unpredictable

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spearhead   05-30-2009 at 01:23:29 PM
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yes your right but it could work if there was driver support. heck even a radeon 4450 could crossfire with a 4890 with driver support. but it is not worth it in sence of speed to spend so many man hours on that. the 4770 crossfire with 48xx cards would require a long way for the drivers to come they would need to accept all the diffrence between the too chips without crashing that could be tricky for the writers.

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