Single 16x or Dual 8x Performance.

dachief173

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Jul 21, 2013
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This is one topic i'm not too well versed in. My brother up until now has had one Gtx 650. His MoBo has 3 PCI-e slots. This first will do 16x. If you plug in two Gpu's the first and second will do 8x. My question is, he got another Gtx 650 for Xmas, will the performance boost of two Gpu's in SLI make up for the slower PCI slot speed? How much in relative terms will the performance be bogged down? Is the performance loss enough to warrant getting another MoBo that can handle 2 16x Slots? Just trying to get a better understanding of how the performance would balance out. Thanks guys!
 
Solution
You will not see one bit of performance loss in a x8 slot compared to a x16 slot with 650s, or any other card for that matter. SLIing 2 650 will give you a considerable performance gain, enjoy :)