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PCIe lanes with graphic card and NVME

Hello,

Just

I am on the verge of building myself a new PC and I am on a specific budget (around 1400USD) the build i am thinking about:

i7 7700k

 some GTX1080

16GB RAM (I know a bit low compere to other parts of the sped build but i might upgrade it later)

samsung 960EVO nvme

MOBO - any that would support it all

 

the question is sine the 7700k only have 16 PCIe lanes, would it decrease the performance noticeably since the NVME drive need 4 PCIe lanes too? I mean i know the graphics card isn't saturating the x16 PCIe slot but muxing sure to introduce some lag.

 

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it will be fine don'T worry.

 

if you want to save some bucks downgrade nvme to "normal" sata SSD, you will not notice much of a difference anyway.

also 16GB is fine unless you are heavy into RAM heavy tasks (which gaming is not with 16GB allready in the rig)

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You won't notice a difference 

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More to the point: the PCI-E 16 Lanes that the CPU are usually only for the 2 GPU slots

The NVME will use the DMI3.0 connection and thus will not eat up the x16 bandwith

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Just now, ItsTheDuckAgain said:

it will be fine don'T worry.

 

if you want to save some bucks downgrade nvme to "normal" sata SSD, you will not notice much of a difference anyway.

also 16GB is fine unless you are heavy into RAM heavy tasks (which gaming is not with 16GB allready in the rig)

the PC is not only for gaming, faster storage is actually impotent to me. I never had experience with NVME drives, and the Samsung 960evo seem to have nice specs. can you give some more information on why it wouldn't make a difference, and maybe a model you would offer to downgrade to? 

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The lanes go though the chipset, separate from the 16 that go direct to the CPU for the GPU, it wont be a problem (8x would be fine anyway). 

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7 minutes ago, Tzachi said:

the PC is not only for gaming, faster storage is actually impotent to me. I never had experience with NVME drives, and the Samsung 960evo seem to have nice specs. can you give some more information on why it wouldn't make a difference, and maybe a model you would offer to downgrade to? 

 

 

I would get a n 850 Evo

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6 minutes ago, Dujith said:

More to the point: the PCI-E 16 Lanes that the CPU are usually only for the 2 GPU slots

The NVME will use the DMI3.0 connection and thus will not eat up the x16 bandwith

Thanks. didn't know about that difference between PCIe lanes for graphics and DMI for storage. Need to read about it for a bit 

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41 minutes ago, Tzachi said:

Thanks. didn't know about that difference between PCIe lanes for graphics and DMI for storage. Need to read about it for a bit 

KABY-LAKE-1.png

 

This is a simple schematic on how everything that runs of the CPU is connected.

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Thread cleaned.

 

This isn't about a PCPP build, if you can't, or won't, answer the OPs question, then please don't reply and move on.

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2 hours ago, Tzachi said:

Thanks. didn't know about that difference between PCIe lanes for graphics and DMI for storage. Need to read about it for a bit 

When you do select a motherboard take an extra minute to go over what it has to say about M.2 NVMe drives and how it may affect other SATA ports on the board.

It's possible that having an NVMe drive connected will disable certain SATA ports on the board itself.

Check the manual to be sure.

 

This might not a big deal unless you want to add lots of extra SATA drives but it is something to be aware of.

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