Gigabyte Z390 Aorus Xtreme Review: On the Edge of Excellence

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Tom's Hardware Verdict

Despite its high price, configuration issues with our overclocked memory were the only issues that prevented us from proclaiming the Z390 Aorus Xtreme the best board for Intel’s mainstream platform.

Reasons to buy

  • +

    Larger voltage regulator for increased power output

  • +

    Latest Thunderbolt 3 controller with dual Type-C ports

  • +

    10GbE in addition to GbE and 1.73Gb/s Wi-Fi

  • +

    Aorus RGB Fan Commander with eight RGB/D-LED/Fan ports

  • +

    Handy OC Touch controller with six additional fan ports

Reasons to avoid

  • -

    OC issues when paired with HyperX Predator RGB DDR4-2933

  • -

    No mounting provisions for the OC Touch device

  • -

    Expensive

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Thomas Soderstrom
Thomas Soderstrom
Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.
7 Comments Comment from the forums
  • eye4bear
    For the kind of money they are asking, you would think there would be no RAM issues, but then again this is typical Gigabyte.
    Reply
  • Crashman
    21749632 said:
    For the kind of money they are asking, you would think there would be no RAM issues, but then again this is typical Gigabyte.
    Not typical from what I've seen. This is the first Gigabyte board I've tested that didn't support overclocking this RAM.

    Reply
  • njbmw5
    Mobo's so good, Even the price is Xtreme...
    Reply
  • joevt1
    Where does that "shared 36Gb/s" number come from regarding the Thunderbolt ports? PCIe 3.0 x4 is limited to 31.5Gb/s. Each Thunderbolt port (40Gb/s) is limited to 22Gb/s of PCIe data, with the remaining usable only by DisplayPort data which has priority over PCIe data. Attempting to get PCIe data from both ports simultaneously might get you a little over 23Gb/s (that's the number I get when I try to RAID the two Thunderbolt ports).

    The built-in Thunderbolt ports aren't great for Thunderbolt displays because the Thunderbolt controller gets DisplayPort data from the integrated graphics. The I/O panel should have included two DisplayPort inputs for the Thunderbolt controller. Unpopulated inputs could force a switch to integrated graphics maybe (otherwise DisplayPort outputs would be required to use integrated graphics).

    A Thunderbolt controller has an extra DisplayPort output which the I/O panel could also include. The two DisplayPort signals used by the Thunderbolt controller can be output through a single Thunderbolt port or any combination of two ports from the three (port 1, port 2, or DisplayPort). The DisplayPort port would be useful in the case where devices connected to the Thunderbolt ports don't include a DisplayPort output.

    With all that said, I guess it would be better to not include Thunderbolt (frees up 4 PCIe lanes), and just allow using a Thunderbolt add-in card like the GC-TITAN RIDGE which does have two DisplayPort inputs, the extra DisplayPort output, two Thunderbolt ports, and 100W of power delivery to the first Thunderbolt port.

    I understand that having an HDMI port is useful for quickly connecting to an HDMI display, but their HDMI 1.4 port only allows 4K 30Hz. I think motherboards should only include DisplayPort (or USB-C) to allow 4K 60Hz on all displays connected to integrated graphics because it is much easier and less expensive to convert DisplayPort to HDMI 2.0 or whatever than it is to do the reverse. VGA, DVI, and HDMI adapters are cheap. Only including DisplayPort ports frees up space on the motherboard that would be used by converter chips (or voltage level shifters in the case of HDMI 1.4 from integrated graphics).
    Reply
  • Crashman
    21750957 said:
    Where does that "shared 36Gb/s" number come from regarding the Thunderbolt ports? PCIe 3.0 x4 is limited to 31.5Gb/s.
    Thanks for catching that, I meant to say 32Gb/s ;)

    Reply
  • joevt1
    21751134 said:
    Thanks for catching that, I meant to say 32Gb/s ;)
    When you say 32 Gb/s, I wonder if you mean the bits on the wire or if you're rounding the bits they encode which is 32 Gb/s * 128b/130b. For example, if you were talking about PCIe 2.0, then the bits on the wire would be 20 Gb/s but the decoded data would only be 20 Gb/s * 8b/10b or 16 Gb/s (not considering all the PCIe overhead). I guess it doesn't matter since you're not talking about PCIe 2.0 (although some laptops do use PCIe 2.0 for their Thunderbolt 3 controller).

    I guess the real problem is that you say it's the latest Thunderbolt 3 controller sharing 32 Gb/s for both ports when the actual obtainable speed of approximately 23 Gb/s is probably not any greater than that of the previous generation Thunderbolt 3 controller. Other devices limited by PCIe 3.0 x4 (such as NVMe) can achieve speeds much closer to the theoretical 31.5 Gb/s max. Someone familiar with the max speeds of previous Thunderbolt 3 controllers might be wondering if this newer controller performs better when they read the 32 Gb/s number. I guess that's a problem of the reader since your review only states the bandwidth of the data pathway and does not make any claims about the amount of actual data that can be sent on that pathway by the controller and it's ports.

    One of the most significant improvements in the latest Thunderbolt 3 controller is that it allows DisplayPort 1.4, but that's not a consideration here because the controller is connected to Intel integrated graphics which is limited to DisplayPort 1.2. The other significant improvement in the latest Thunderbolt 3 controller is that there is a version for Thunderbolt peripheral devices that allow some of the features of the device to be connected to hosts that have USB-C + DisplayPort alt mode but no Thunderbolt. That is also not a consideration here, because the motherboard is not a peripheral.

    So, while the controller is the latest, it does not make the motherboard significantly better.
    Reply
  • Crashman
    21751631 said:
    21751134 said:
    Thanks for catching that, I meant to say 32Gb/s ;)
    When you say 32 Gb/s, I wonder if you mean the bits on the wire or if you're rounding the bits they encode which is 32 Gb/s * 128b/130b. For example, if you were talking about PCIe 2.0, then the bits on the wire would be 20 Gb/s but the decoded data would only be 20 Gb/s * 8b/10b or 16 Gb/s (not considering all the PCIe overhead). I guess it doesn't matter since you're not talking about PCIe 2.0 (although some laptops do use PCIe 2.0 for their Thunderbolt 3 controller).

    I guess the real problem is that you say it's the latest Thunderbolt 3 controller sharing 32 Gb/s for both ports when the actual obtainable speed of approximately 23 Gb/s is probably not any greater than that of the previous generation Thunderbolt 3 controller. Other devices limited by PCIe 3.0 x4 (such as NVMe) can achieve speeds much closer to the theoretical 31.5 Gb/s max. Someone familiar with the max speeds of previous Thunderbolt 3 controllers might be wondering if this newer controller performs better when they read the 32 Gb/s number. I guess that's a problem of the reader since your review only states the bandwidth of the data pathway and does not make any claims about the amount of actual data that can be sent on that pathway by the controller and it's ports.

    One of the most significant improvements in the latest Thunderbolt 3 controller is that it allows DisplayPort 1.4, but that's not a consideration here because the controller is connected to Intel integrated graphics which is limited to DisplayPort 1.2. The other significant improvement in the latest Thunderbolt 3 controller is that there is a version for Thunderbolt peripheral devices that allow some of the features of the device to be connected to hosts that have USB-C + DisplayPort alt mode but no Thunderbolt. That is also not a consideration here, because the motherboard is not a peripheral.

    So, while the controller is the latest, it does not make the motherboard significantly better.
    True. I never thought about the limitations of the onboard graphics as being anything more than "they're so weak that nobody in this market will use them anyway".

    Reply