PCI-E 3.0 to USB 3.1 vs onboard USB 3.1 less latency?


  1. Posts : 55
    Winows 10 Pro 1809
       #1

    PCI-E 3.0 to USB 3.1 vs onboard USB 3.1 less latency?


    Which would result in less latency PCI-E to usb vs onboard usb?
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  2. Posts : 17,344
    Windows 11 Pro
       #2

    There would not be any difference enough between the two to notice.
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  3. Posts : 55
    Winows 10 Pro 1809
    Thread Starter
       #3

    NavyLCDR said:
    There would not be any difference enough between the two to notice.
    I understand, but which would be more efficient
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  4. Posts : 17,344
    Windows 11 Pro
       #4

    PolisP said:
    I understand, but which would be more efficient
    That would depend upon the motherboard and which USB controller chipset is on the motherboard v. which USB controller chipset would be on a PCIe card. You'd probably have to hire a system engineer to get an accurate answer.
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  5. Posts : 1,020
    Windows 10 Pro 20H2 19042.572
       #5

    NavyLCDR said:
    That would depend upon the motherboard and which USB controller chipset is on the motherboard v. which USB controller chipset would be on a PCIe card. You'd probably have to hire a system engineer to get an accurate answer.
    Correct, but most manufactures will change chip sets based on cost and that in itself may or may not require firmware changes, but most can't tell you the difference even at the engineering level. As long as its compatible, that's all they care about.

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