Question about m.2 drives and bandwidth

[powelly]

Right i am a complete noob when it comes to drives and speeds and what not so having said that here goes.
To keep this nice and simple lets say if i had this motherboard
https://www.overclockers.co.uk/msi-...cket-1150-ddr3-atx-motherboard-mb-279-ms.html

with this m.2 ssd
https://www.overclockers.co.uk/sams...state-drive-mzvpv256hdgl-00000-hd-213-sa.html

Question A. would it fit into the motherboard m.2 slot?
Question B. if i was running crossfire, to my understanding it eats the bandwidth for m.2? so would i be getting full speeds or would it be capped at like 600 / 700mb/s?

 

[Caracus2k]

Right i am a complete noob when it comes to drives and speeds and what not so having said that here goes.
To keep this nice and simple lets say if i had this motherboard
https://www.overclockers.co.uk/msi-...cket-1150-ddr3-atx-motherboard-mb-279-ms.html

with this m.2 ssd
https://www.overclockers.co.uk/sams...state-drive-mzvpv256hdgl-00000-hd-213-sa.html

Question A. would it fit into the motherboard m.2 slot?
Question B. if i was running crossfire, to my understanding it eats the bandwidth for m.2? so would i be getting full speeds or would it be capped at like 600 / 700mb/s?

1) the drive would mechanically fit the board

2) without running any form of sli or crossfire that board would seriously hold back an m.2 pci-e ssd like the one linked as it is able to use four lanes of gen3 but that board only supplies 2 lanes of gen 2 for the m.2 slot and it does that by disabling two of the sata ports.... Don't think you'll be able to boot from the drive as well. To make the most of a modern m.2 drive you will likely need either an x99 or z170 board that supply pci -e ver3 lanes to their m.2 slots

For reference pci-e bandwidth

v1.x (2.5 GT/s):
250 MB/s (×1)
4 GB/s (×16)

v2.x (5 GT/s):
500 MB/s (×1)
8 GB/s (×16)

v3.x (8 GT/s):
985 MB/s (×1)
15.75 GB/s (×16)

So a pci-e ver2 x2 slot would be saturated at 1000MB/s well below the drives maximum capacity

 

[powelly]

Thanks for the info, so say if I got a board that could run tri fire pci-e 3 at 8x 8x 4x I'd be fine with crossfire and an m.2 in a pci-e expansion card type thing?

 

[Caracus2k]

Thanks for the info, so say if I got a board that could run tri fire pci-e 3 at 8x 8x 4x I'd be fine with crossfire and an m.2 in a pci-e expansion card type thing?

I would check the boards manual which you can normally download direct from the manufactures website to check how the PCI-E lanes are spread out on any given board. As I understand the arrangement for the board you linked the use of the m.2 slot only effects the sata ports (you lose the use of two of them).

 

[.:SAmSuNG:.]

On my z97m running on the m.2 I got 700-800mbs. But no different running at 2000mbs. Day to day you won't notice.