M.2 storage query

[Lucky_12]

Hey all,
Will a Samsung 940 M.2 gen 3 ssd preform better than SATA if I have 32 PCIe lanes taken up by my 2 GTX 970's? My CPU is an I75930k on an asrock x99x killer. If I have 32 lanes already taken up by the GPUs that leaves 8 for m.2. I'm wondering if that's enough for the proposed 32g/s transfer rates of the 940?
Thanks guys.

 

[Lutfij]

According to your motherboard's specification page, your boards M.2 slots is limited to PCI-E x4 which means you physically have 4 lanes allocated by the motherboard's manufacturer. You'd also like to read through this article to understand that 4 lanes is the standard unless someone comes along to assign more lanes on the M.2 slot/drive.