Why 4 16x slots on new X299 and X399 boards?

Discussion in 'Motherboards' started by bjornb17, Jun 8, 2017.

  1. bjornb17

    bjornb17 [H]ard|Gawd

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    Is anybody still planning on running 4 GPU's on any of these boards? I thought multi GPU support beyond 2-way was on the downfall?
     
  2. Hagrid

    Hagrid Gay for Kyle Fanclub President

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    Not all users use them for video cards.
     
  3. sirmonkey1985

    sirmonkey1985 [H]ard|DCer of the Month - July 2010

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    it is but that's not the only thing you can use them for. You have pcie raid cards, pcie ssd's, workstation setups, etc because rigs like these aren't going to be used specifically for gaming in mind.
     
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  4. bjornb17

    bjornb17 [H]ard|Gawd

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    Good points, I hadn't though about that.
     
  5. tropox

    tropox n00bie

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    no, that's only for gaming, for other uses you can use as many GPUs as are supported by your motherboard/cpu
     
  6. tangoseal

    tangoseal [H]ardness Supreme

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    Mining operations can make use of every pcie lane available
     
  7. ecmaster76

    ecmaster76 Gawd

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    If you want to run a whole bunch of displays its easier to find 4 decent PCIe x16 video cards than scrounge for x1 parts
     
  8. Parja

    Parja [H]ardForum Junkie

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    And you can always plug x1/x4/x8 cards into x16 slots.
     
  9. hitched

    hitched n00bie

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    It would have to be just for 2 reason... mining or just plain and simple future expand ability...
     
  10. whateverer

    whateverer AMD Owns Techreport

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    yeah, like Parja said, smaller cards can fit in larger slots.

    PCIe has basically whittled down to 16x and 1x slot sizes. So that you're not limited to "just one slot" available for your x2 or x4 or x8 cards.

    When you think about it, anything else is a waste of space, and is sure to cause you massive compatibility issues. So having as many x16 slots as possible ups the versatility of those "larger than x1" expansion slots!
     
  11. lutjens

    lutjens Gawd

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    NVMe drives drink PCI-E lanes like water...you can never have too many lanes...;)
     
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  12. Tsumi

    Tsumi [H]ardForum Junkie

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    Not the only reasons. GPU accelerated VFX work can use as many cards as there are in the system. By extension, just about any GPU accelerated workstation task can do it.