3-way SLI on my mobo ?

[thespeedding]

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
Thanks

 

[xtreme5]

those gpu's are PCI-E 3.0 based so find a mobo with pci-e 3.0 slots.

 

[thespeedding]

I read there's no big difference, only around 5% ... And PCIE 3.0 cards are also compatible on PCIE 2.0 situated mobos

 

[bucknutty]

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.

 

[thespeedding]

OK, thanks, then i will buy this - http://www.asus.com/Motherboards/Intel_Socket_1155/Maximus_IV_Extreme/#specifications

 

[bucknutty]

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.

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131822

 

[xtreme5]

@thespeedding, did you see what @bucknutty said. you were not trust on me.

 

[xtreme5]

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.

 

[thespeedding]

OK, thank you. This mobo looks nice ! And yes, I like ASUS and i have i7-2600

 

[xtreme5]

OK, thank you. This mobo looks nice ! And yes, I like ASUS and i have i7-2600

good.