ASRock Z87 Extreme6/AC Conclusion

Everyone has their own ideas as to what constitutes a perfect motherboard.  My first question is usually ‘what price band are we talking about?’, as that would define the level of ‘extras’ above the base model.  When I first looked at the unassuming ASRock Z87 Extreme6/AC, the main feature for me was the 802.11ac dual band WiFi module on board.  Having had the time to test the Extreme6/AC, it is clear to me now that the board is so much more than just the AC.

Now when I started to prepare this review, I was circling around the main motherboard manufacturers asking for their $200 motherboards – something around this mark, perhaps up to 10% above and below this mark, whatever in this price bracket the manufacturer believes will be its best seller.  It is a value that tends to be popular enough for enthusiasts going for new builds, and I like the fact it contrasts many of the super high-end value reviews we see at launch day.  This price band gives the manufacturer the option of one or two SKUs to send me – either something lower which may attract more users, or at the high end to expose the feature set.  I am glad each manufacturer sent me something different (mid-range, gaming-range) – ASRock went in at the high end of my request with the Extreme6/AC at $220 (-$20 instant rebate in June for NA), but I am glad they did.

For that $200/$220, we get ten SATA 6 Gbps ports, eight USB 3.0 ports, 802.11ac dual band WiFi, Realtek ALC1150 audio, DVI-I, dual Intel NICs, HDMI-In and x8/x4/x4 PCIe.  Ding ding, we have a connectivity winner.  This product is hitting an obscene price point compared to the motherboards around it, and could very well be this generations Z77X-UD5H, which we rated highly for similar reasons.  Of course with all this onboard, something has to give – as a result we do not get a black coating covering the traces on board, the CPU VRM heatsinks are a little small, most of the fan headers are 3-pin and there are no voltage check points or similar for overclockers.

There is always room for improvement, and the main goal from ASRock should be to improve their software.  It gets an upgrade from Z77 for Z87, but the simple things like correct spelling should be sorted before a reviewer gets hands on a motherboard.

In terms of performance the Extreme6/AC comes with MultiCore Turbo as standard, giving that extra boost over motherboards that do not have it.  Against the boards that do, the ASRock seems to have good efficiency, and the x8/x4/x4 does help against the x8/x8+x4 setups in tri-GPU mode.  The XFast software helps the Extreme6/AC generate new records in USB performance, both for USB 2.0 and USB 3.0, and Windows 7 POST times fall under 12 seconds which is always good.  The only two downsides for performance come at the expense of DPC Latency which is quite high for Z87 (314 microseconds), and there is no good software to accurately monitor the CPU voltage on the motherboard.

Nevertheless, the ASRock Z87 Extreme6/AC is a great motherboard to play with, especially in connectivity alone.  Other manufacturers will have a big challenge to offer something at this price point with more functionality.  ASRock have truly hit the nail on the head, and if I were buying a motherboard today, as an 802.11ac WiFi user, the Extreme6/AC would be on the short list.  For these reasons, I feel no shame in offering the ASRock Z87 Extreme6/AC our Editor’s Choice Silver Award.  The Extreme6/AC is an exciting play by ASRock that the competition will struggle to match.

ASRock Z87 Extreme6/AC
AnandTech Editor’s Choice Silver Award

MSI Z87-GD65 Gaming Conclusion ASUS Z87-Pro Conclusion – Silver Award


View All Comments

  • Timur Born - Saturday, July 27, 2013 - link

    Balanced inputs would only help when the outputs to be tested offered balanced outputs, but you won't find these on mainboard solutions. Still a professional solution might be preferable, because don't just concentrate on listing theoretical spec numbers of the converter chips, but also make sure to get the most out of it in practical implementation.

    The English ASUS site lists little (and partly wrong) information about the Xonar Essence STX for example, there is much better information on the German site, though. Still they list frequency response at -3 (three!) dB points, while usually you would choose -0.5 dB or -1 dB points to give a real picture.
  • repoman27 - Thursday, June 27, 2013 - link

    While the Intel block diagram for the DZ87KLT-75K does appear to show 20 lanes of PCIe 3.0 coming from the CPU, the 8 PCIe 2.0 lanes from the PCH are used for the GbE controllers (2 x1), Thunderbolt controller (1 x4), the PCIe mini card / mSATA slot (1 x1), and a "PCIe Hub" (1 x1). We can presume this is really a conventional PCIe switch, and the Marvell 88SE9172, the 3 x1 slots, and the PCIe to PCI bridge are all connected to that.

    What's the deal with FDI now that there are display connections coming directly from the CPU? The block diagrams still show FDI and the Thunderbolt controller being fed DisplayPort from the PCH. Are the CPU display outputs DP 1.2 and the PCH connections still DP 1.1a?
  • repoman27 - Thursday, June 27, 2013 - link

    Sorry, I should have kept reading before commenting about the display interfaces. Reply
  • repoman27 - Thursday, June 27, 2013 - link

    The article does however say, "leaving the VGA behind", which should read, "leaving LVDS and SDVO (like anybody cares) behind." The PCH does still support VGA via the FDI x2 link as long as those lanes aren't being co-opted by Port D for eDP.

    Also, I meant to point out in my original comment that the additional USB 3.0 ports on the Intel board appear to be provided by a pair of USB 3.0 hubs, not a discrete controller.
  • Jaaap - Thursday, June 27, 2013 - link

    Great Review Ian.
    I'd also be very interested in the minimal power consumption of Z87 motherboards without videocards and a PSU efficient at low powers (a PicoPSU or a light Seasonic).
  • IanCutress - Thursday, June 27, 2013 - link

    I think Anand hit 34W idle on his 4770K with IGP?

    I have 500W Platinums for mini-ITX reviews, but I that might be too much for IGP idle at sub-10%.
  • DanNeely - Thursday, June 27, 2013 - link

    500W probably is too much for anything other than relative comparison scores. IIRC most of the 80+ standards only require specific efficiency levels between 20 and 80% loads.

    ex The 400W Seasonic X-400 2 is 89.5% efficient at an 86W load; but only 82.6% at 37W.
  • igxqrrl - Thursday, June 27, 2013 - link

    Am I the only one confused by the video out options?

    I'm looking for integrated graphics that can drive 2x30" (2560x1600) or 2x27" (2560x1440) displays. Can any of these motherboards do that?
  • repoman27 - Thursday, June 27, 2013 - link

    The Gigabyte, Asrock and Asus boards theoretically can, however in each case you'll need to drive one of the displays via the HDMI output. AFAIK there aren't a ton of displays that support 2560x1440 or 2560x1600 over HDMI. Reply
  • Earballs - Thursday, June 27, 2013 - link

    The max resolutions are listed with typical refresh rates, but not max refresh rates. Just thought I'd throw that out there while talking about confusing video out options. Reply

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