Will the GTX1080 saturate 8 lanes of PCI-E 3.0?

thanatos2k · May 10, 2016

Or is it too early to tell?

Hoping to add another Samsung 950 Pro in my GA-Z170X Gaming 7 board, but if I do that the 10GbE PCI-E x8 card has to move to the secondary PCI-E x16 GPU slot, which will clock the main x16 slot down to 8 lanes. On my current GTX 680 Classified card that wouldn't be a problem, but when the new 1080 arrives would it need more than 8 lanes @ 3.0 speeds?

kanewolf · May 10, 2016

Until it is benchmarked we won't know for sure.

lakimens · May 10, 2016

I do think it would, this card overpowers 980TI, Titan X and even 980SLI.
Judging by it's power, I think it will need.

Gnuffi · May 10, 2016

lakimens :

and this got anything todo with what?
since the 980ti and even titan did nowhere near saturate x8, why would 1080 since its not even 2x as powerful?

please stop speculating so hardcore until benchmarks are out
and on teh speculating side
do you really think Nvidia would intentionally hamper their SLI sales by saturating the lanes to such a degree where SLI would be even more discouraged? since the vast majority of people are/would be running on x8 lanes for SLI

SoNic67 · May 10, 2016

I don't think so... PCIe 3.0 on x8 mode is still VERY fast. A single PCIe 3.0 lane, at 8GT/s, can send 985MB/s. Times 8 means 7.88GB/s
That's similar to PCIe 2.0 x16.

I think that's more than needed, even for 2560x1440 gaming.

Gnuffi · May 10, 2016

double post

rgd1101 · May 10, 2016

And it got 8GB of VRAM, that is a lot for texture.

thanatos2k · May 10, 2016

Gnuffi :

Thanks, that was the data point I was looking for, Ofc can't know till we see data but that's a solid comparison, especially with a dual GPU Titan.

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Will the GTX1080 saturate 8 lanes of PCI-E 3.0?

thanatos2k

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Gnuffi

kanewolf

Titan

lakimens

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Gnuffi

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SoNic67

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Gnuffi

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rgd1101

Don't

thanatos2k

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