Are the amount of GPU PCIe Lanes affected when a NVME M.2 and a WiFi card are used simultaneously?

ItsPizzaGram

Commendable
Dec 15, 2016
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I understand the Graphics card uses 16 PCIe lanes, and the Chipset has 20, so 20-16=4 spare PCIe lanes.
If you were to use a NVME PCIe 4x M.2 SSD (like a Samsung 960 Evo) in the dedicated M.2 slot of the motherboard, would adding a PCIe WiFi or an adapter card like PCIe to Sata mean the Graphics card would run at 8x speed?
And would the speed difference be noticeable on a Graphics Card like a GTX 1080 where it might be bottle necked?

Thanks.
 
Solution
No, your CPU also provides PCIE lanes, plus SLI cards run full power at x8 anyway. I dont think there's a GPU in existence that would saturate PCIE 3.0 x8.

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KeelinTy

Reputable
Nov 20, 2014
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With pci, if you have 2 x16 devices, both will run at x8 since a cpu like the 6700k only has 20 lanes. GPU performance isnt really affected. Within the margin of error actually. With storage, I have no idea how and if it will affect speeds as I use a sata ssd while I have dual 980tis running at 8x