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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 PureBlackFireΒ 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
(20 items)
 
Osmium
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For Sale: [FS] Z97 system: Xeon and RAM
$160 (USD) or best offer
CPUMotherboardGraphicsGraphics
i7-5775C ASUS Sabertooth Z97 Mark 2 Sapphire RX 480 (reference) MSI Low-Profile 750Ti 
RAMHard DriveHard DriveHard Drive
Corsair Dominator Platinum - 2x8GB Crucial M500 - 960GB Samsung 840 - 250GB WD Scorpio Blue - 1TB 
Hard DriveCoolingCoolingOS
ADATA SP900 - 64GB Scythe BIG Shuriken 2 Rev. B PNY Quadro 600 blower Windows 10 
MonitorMonitorMonitorKeyboard
ASUS VE247H - 1080p Gateway FPD1960 - 1280x1024 Samsung S20D300 - 900p, portrait Rosewill RK9000I - Cherry MX Blue 
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Rosewill HIVE 650W Riotoro CR1080 SteelSeries Rival 100 CyberPower 1500PFCLCD 
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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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