PCI-e bottleneck with more population?

[Tyrosen]

The motherboard in question is Asus Maximus VIII Formula. I want to have 1080 sli, watercooled, with 2 intel 750 pci in raid 0 configuration, using software RAID, of course. Since there is no space for the 2 SSDs in the middle PCI slots, I would have to install one on the first slot, and one on the last. Would this work, and not cause any bandwidth slowdowns? I know if you add 3 PCI x16, the 3rd will lose bandwidth, but what about 2 PCIe x16, and 2 PCIe x4? 

[Tyrosen]

Just now, kwiksilver said:

... get 1 larger graphics card vs 2. it help more

you're telling me to get a Titan XP? lol  

[Tyrosen]

Just now, kwiksilver said:

i think the prices equal out. but dual cards come with issues, such as power consumption, game compatibility, limited choices for sli, the list goes on... but if the prices equal for a big card than get the big one, it works easier and is cool af to say you got this big ass card

The price equals out, but the titan really isn't that much better than ONE 1080. If you get SLI, could definitely see a 50%-75% performance boost, but with the Titan, I'd say around 10%-25% boost compared to a single 1080

[Tyrosen]

Just now, kwiksilver said:

dont know how to help now, i mean even than, how much power do you need? a xp itself can most likely kick vrs ass with high no lag graphics. so yeah...

Not really a buying into the VR hype. I would much rather play 1440p @ 144hz. A Corsair AX1200i would cover eveything, from Mobo to GPUs, to the watercooling pumps. 1440p @ 144Hz is harder to run than 4k, though, but I like a challenge  . Still need answers to my first qquestion though. 

[airdeano]

you do not have enough lane assignments to run that configuration.

x8/x8 for the graphics cards which leave zero for the CPU lanes. moving to the chipset 4 lanes though the 3.0/2.0x4 or the M.2 (using the U.2 hyper kit) uses all the available connectivity. only way to reach close would be through the x99 chipset with 40 lanes and that can get as tough.

[Simon771]

So GPUs would run on x8 directly from CPU lanes.

 

About SSDs ... probbably via chipset, but they would run at x1?

Not sure if that would work on this motherboard.

 

Like @airdeano said, X99 motherboard would be better choise for you.

[airdeano]

one 750 will run at x4 from the z170 chipset in the lowest x16 slot (3.0/2.0x4).