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AMD HD 7970 or HD 7950 on PCI-e 2.0x8

Last response: in Graphics & Displays
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October 13, 2012 6:56:43 PM

Basically, would PCI-E 2.0 x8 negate the differences in raw performance between the HD 7970 and the HD 7950? Especially if I overclocked the HD 7950? I will crossfiring whatever I get with an HD 7970 I already have.


Here are my system specs for reference:
*GIGABYTE GA-P55A-UD4P http://www.newegg.com/Product/Product.aspx?Item=N82E168...

*Intel Core i5-750 @ 3.8GHz http://www.newegg.com/Product/Product.aspx?Item=N82E168...

*VisionTek AMD HD 7970 @ 1025MHz GPU and 1575MHz GDDR5 http://www.amazon.com/VisionTek-Radeon-PCI-Express-Grap...

*G.SKILL Sniper 8GB (2 x 4GB) DDR3 1600 http://www.newegg.com/Product/Product.aspx?Item=N82E168...

*Kingston HyperX 3K 120GBx2 (non-raid) http://www.newegg.com/Product/Product.aspx?Item=N82E168...

*PC Power and Cooling Silencer Mk II 950W http://www.newegg.com/Product/Product.aspx?Item=N82E168...

*Monitors - 24in 1080p x3 for Eyefinity

More about : amd 7970 7950 pci 0x8

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a b U Graphics card
October 13, 2012 7:06:28 PM

If you're doing CF I really think you need to be doing another 7970 if you've already got one, otherwise you very well may cripple yourself if you can't reach the now-theoretical OC you wish to reach.
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October 13, 2012 8:53:21 PM

Best answer selected by revfarquhar.
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