Can the Realtek 8111C GBE controller really handle Gigabit Ethernet?

Discussion in 'hardware' started by XIII, Dec 5, 2021.

  1. XIII

    XIII Registered Member

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    Last week I upgraded my network from 300/30 Mbps cable to 1000/1000 Mbps fiber. While my Apple hardware reaches over 900/900 (wired), my Windows 10 PC cannot do better than 200/100 (wired). Note that this PC is rather old (2008 I think), but it has a Realtek 8111C PCIe GBE controller that should be able to handle Gigabit Ethernet.

    Can anyone with the same controller (Realtek is used a lot) confirm better performance than 200/100?

    What could be causing this?

    (Yes, the PC is old, but so is one of the Macs: a Mac mini Mid 2011, which does achieve 900/900)

    I'm already using the most current Realtek driver, version 10.53.1001.2021 (from 1-Oct-2021), on Windows 10 21H2 64-bit.

    The PC has an Intel Core 2 Duo E8400 CPU. Is that just too old/slow?
     
  2. stapp

    stapp Global Moderator

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  3. XIII

    XIII Registered Member

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    Thanks.

    However, since the PC can do 200/100, I don't think it's limited (set) to 100 Mbps?
     
  4. XIII

    XIII Registered Member

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    Accidentally ran some speed tests in Edge (I normally only use Firefox) and DL/UL speeds are up to 2-4 times faster than Firefox (even Firefox with a brand new profile).

    Huh?
     
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