PCIE-2.0 vs 3.0

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bumblebee953

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Aug 15, 2011
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Hey guys quick question. I'm upgrading from 580 to 980. My 580 bus type was PCI-E 2.0, as my mobo only has PCI-E 2.0 slots. How much performance am I losing upgrading to a 980 that uses 3.0 on my mom 2.0 slots? Thanks!
 
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yeskay


The PCI Express 3.0 cards are backward compatible, will work fine on PCI Express 2.0/1.1 slots, with negligible performance difference. So no need to worry about that. Check this video:
[video="https://www.youtube.com/watch?v=1XNI1GactP8"][/video]

GTX 980 PCI Express 2.0 Vs PCI Express 3.0 Performance Benchmarks
bf4_1920_1080.gif

som_1920_1080.gif
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yeskay

yeskay

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Jul 12, 2014
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The PCI Express 3.0 cards are backward compatible, will work fine on PCI Express 2.0/1.1 slots, with negligible performance difference. So no need to worry about that. Check this video:
[video="https://www.youtube.com/watch?v=1XNI1GactP8"][/video]

GTX 980 PCI Express 2.0 Vs PCI Express 3.0 Performance Benchmarks
bf4_1920_1080.gif

som_1920_1080.gif

metro_lastlight_1920_1080.gif

watchdogs_1920_1080.gif

As you could see the performance of GTX 980 on PCI-E 2.0 X16 slot vs PCI-E 3.0 X16 is just 2 FPS or less. Highly negligible or even non-existent!

Cheers!
 
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