3-way SLI on my mobo ?

Hi, I have this mobo http://www.asus.com/Motherboards/Intel_Socket_1155/P8P67_EVO/
And my question is - can I run 3-way GTX 670 SLI on this MB ? It has 2x x16/x16 and 1x x16/x4
9 answers Last reply
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  1. those gpu's are PCI-E 3.0 based so find a mobo with pci-e 3.0 slots.
  2. I read there's no big difference, only around 5% ... And PCIE 3.0 cards are also compatible on PCIE 2.0 situated mobos
  3. I dont think 3 way will work. The p67 only has 16 pipelines. If you run sli it splits them to 8x and 8x. If you run 3 cards you get 8x 4x and 4x. The GTX670 will easily saturate a 4x connection, it may even saturate a 8x. Chances are if you run 2 670s on that board it will be slower than just running one. 3 will defenitly run slower if it even works.

    check out this note, its the bottom line in the specs from the asus site you linked.

    *1: The PCIe x16_3 slot shares bandwith with the PCIe x1_1 slot, PCIe x1_2 slot, ESATA3G & PESATA3G and USB3_34. The PCIe x16_3 runs at x1 mode by default for system resource optimization. (PCIe x1_2 will be disabled.)

    I have a feeling a video card wont even work in the 3rd slot.
  4. If you want to run 3 gtx670s the only real choice is a z77 based board. They have 32 piplines, so for 3 cards you can go 16x8x8 Check this one out.

    You seem to like asus, and it seems you need an 1155 board.

  5. @thespeedding, did you see what @bucknutty said. you were not trust on me.
  6. doing 3 way sli of pci-e 3.0 cards into pci-e 2.0 will drop the performance about 10-15% because lack of bandwidth.
  7. OK, thank you. This mobo looks nice ! And yes, I like ASUS and i have i7-2600
  8. thespeedding said:
    OK, thank you. This mobo looks nice ! And yes, I like ASUS and i have i7-2600

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