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Motherboard that supports dual PCIe 3.0 at x16

I have found one motherboard so far that has dual cards at x16 and I like it a lot but I want a cheaper board. I want a board that has Z87 chipset, LGA 1150, ATX and good for overclocking.

I want that feature do to playing with eyefinity on 3 21.5" monitors at 5760x1080. If someone can talk me out of wanting dual x16 then that works too.

The one I found was the ASrock extreme9/ac

update: just found another one and it costs more. The Gigabyte GA-Z87x-OC
8 answers Last reply Best Answer
More about motherboard supports dual pcie x16
  1. It's not necessary to have dual 3.0 @ x16, cards right now can not saturate 2.0 x16 or even 2.0 x8, so if you found a board that was x16 x8 you would be perfectly fine.
  2. In reality, you run into latency issues when using a PLX chip to obtain a x16/x16 configuration. You would be better served with a x8/x8 SLI configuration if you don't plan on more than 2 cards. The Asus Z87-WS is the most economical choice for 3 or 4 way SLI.
  3. burdenbound said:
    It's not necessary to have dual 3.0 @ x16, cards right now can not saturate 2.0 x16 or even 2.0 x8, so if you found a board that was x16 x8 you would be perfectly fine.


    why not? I love ASrock but due to looks is gigabyte a brand o go with for what I want or should i not sacrifice looks for quality?
  4. Best answer
    Look at the scaling difference between PCIe ver 3.0 at X8 and X16 http://www.techpowerup.com/reviews/Intel/Ivy_Bridge_PCI-Express_Scaling/23.html Not much difference is there? Reason why board manufacturers are not making them all with X16 X16 slots in dual setups.
  5. motherboards supporting dual x16 cards are always expensive. it is because intel controller only 1 x16 or 2 x8 etc. and the motherboard manufacturers have to put in an extra controller for providing 2 x16and is not cheap.

    you can but do 1 thing for sure, get 2 hd7970 s in cfx. you will be good. will work totally fine with dual x8 too
  6. siddharthmukul007 said:
    motherboards supporting dual x16 cards are always expensive. it is because intel controller only 1 x16 or 2 x8 etc. and the motherboard manufacturers have to put in an extra controller for providing 2 x16and is not cheap.

    you can but do 1 thing for sure, get 2 hd7970 s in cfx. you will be good. will work totally fine with dual x8 too


    I am getting those GPU's for sure Ghz edition
  7. Cyler12 said:
    siddharthmukul007 said:
    motherboards supporting dual x16 cards are always expensive. it is because intel controller only 1 x16 or 2 x8 etc. and the motherboard manufacturers have to put in an extra controller for providing 2 x16and is not cheap.

    you can but do 1 thing for sure, get 2 hd7970 s in cfx. you will be good. will work totally fine with dual x8 too


    I am getting those GPU's for sure Ghz edition


    have fun gaming :)
  8. rolli59 said:
    Look at the scaling difference between PCIe ver 3.0 at X8 and X16 http://www.techpowerup.com/reviews/Intel/Ivy_Bridge_PCI-Express_Scaling/23.html Not much difference is there? Reason why board manufacturers are not making them all with X16 X16 slots in dual setups.


    Good review there, Thanks.. :)
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