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7870 vs 7870 XT

post #1 of 5
Thread Starter 
I'm trying to figure out the differences between the two because there's an XT for $140 right now. Is it just a normal 7870 with more cores or is it a cut-down 7950? Is it worth crossfiring with my 7850 if I were to do so? In crossfire-supporting games, both are used. In games that don't support it, the XT is in the top slot and is used.
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post #2 of 5
7870 is a pitcairn 1280 SP card. 7870XT is a 1536 SP tahiti, the same chip in the 7950/7970. the XT cannot be crossfired with a 7850.
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post #3 of 5
What he said, The 7870 XT is a 7950 chip that failed binning and had the shader count reduced to 1536 (From 1792 in the 7950)
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post #4 of 5
Thread Starter 
Quote:
Originally Posted by PureBlackFire View Post

the XT cannot be crossfired with a 7850.

Gah! That sucks. Well, thanks anyway. On a similar note, does anybody have experience using the weaker and stronger GPU together (e.g. 7950 and 7970)?
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Triumvirate
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Osmium
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EleMINT 24
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Windows 10 Pro ASUS VE247H - 1080p Gateway FPD1960 - 1280x1024 Rosewill RK9000I - Cherry MX Blue 
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post #5 of 5
If you Crossfire a weaker GPU with a stronger one the stronger GPU will down clock to match the weaker one.
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