- Jun 21, 2005
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Originally posted by: keysplayr2003
As long as the riser card has only 1 device installed, it should not introduce any latency. But if you perhaps were to install two or more devices into the riser (some PCI risers I used to see had 3 slots available in them for low profile (3U) rack servers), then I could see latency being introduced as they would need to share the bandwidth of one slot.
Here is a little bit about it:
Link
Originally posted by: Zap
Interesting link. With converting from one interface to another, besides losing some performance I'd be a bit more worried about the bandwidth of the slowest interface. For instance, I have benchmarked the same GPU using both PCIe and PCI interfaces (8800 GS, PCI version uses a bridge chip) and the PCI version was definately slower, but I believe most (but not all) of that performance loss due to the PCI bus (versus native PCIe) and not from any introduced latencies.
Originally posted by: thilan29
Originally posted by: keysplayr2003
As long as the riser card has only 1 device installed, it should not introduce any latency. But if you perhaps were to install two or more devices into the riser (some PCI risers I used to see had 3 slots available in them for low profile (3U) rack servers), then I could see latency being introduced as they would need to share the bandwidth of one slot.
Here is a little bit about it:
Link
Thanks for the link.