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Do PCIe risers or extension ribbons affect GPU performance?

mashumk

Member
May 19, 2012
40
0
0
Contemplating a bizarre arrangement of a GTX670 in a small-ish case. Do risers (for example, to turn GPU 90 degrees) or ribbons slow down a GPU or affect them in other ways?

Furthermore, does distance matter? Meaning, stringing together multiple ribbons may weaken/slow down the speed of the data transfer thus screw up GPU performance?

Thank you very much. :)
 

Yuriman

Diamond Member
Jun 25, 2004
5,530
141
106
I don't know if it applies to PCIe but I remember reading about AGP risers. They have no ill effect on performance up to the point of instability due to latency being unacceptable. How long is too long would need to be determined by experimentation, though with AGP risers it was possible to get 2-4 inches.
 

ViRGE

Elite Member, Moderator Emeritus
Oct 9, 1999
31,516
165
106
Using risers with high-end video cards is rather atypical, but no, I've never seen it have a measurable impact on performance.
 

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