I've got a question about PCI Express

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ZeusGamer

ZeusGamer

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Jul 9, 2014
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I've got two R9 280X in crossfire mode, would putting a PCI wifi module sacrifice any performance at all? If so, I just won't install this card.

I'm connected through ethernet cable and I just wanted to start my own internet connection. IF I am going to lose any performance, I'll just ignore this.
 
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viewtyjoe

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Jul 28, 2014
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Most dual-GPU motherboards and CPUs run in x8/x8 or x16/x8 mode, which is usually not noticeably slower than x16/x16 if it's supported, and then the rest of the PCIe lanes are reserved for the other slots (x1, x4), so you shouldn't see any loss in performance adding in a wireless card via PCIe.
 
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ZeusGamer

ZeusGamer

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Jul 9, 2014
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So my R9 280Xs will still run in 8X/8X mode right? I believe that i7 4770K only has 16 PCI Express lanes so I'm really not sure.
 
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viewtyjoe

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From my understanding, it should still be fine. I doubt that a 1x wireless card could max out the lane anyways.
 
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ZeusGamer

ZeusGamer

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Alright, thanks!
 
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