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x299 vs z370 - PCIe Lanes for GPU AND NIC

Hi all,

I'm looking to build a new system and had a question on PCIe lanes. I want to go with a new z370 mobo but I am wondering if i will have enough CPIe lanes. For my z370 setup, i wanted to go with the i7-8700k and have one GPU with 2 nvme's and one or even two 10GBe NICs. I know PCIe lanes have been talked about a lot but personally for my set up i wanted to know if this can work. I just want to confirm I will have enough lanes for the full bandwith for all connections. I was looking at the ASUS ROG Maximus X Hero (Wi-Fi AC) or the ASUS ROG Strix Z370-E Gaming motherboards for z370 and the ASUS ROG RAMPAGE VI EXTREME for the x299 motherboard.

Thanks all in advance
Reply to kj777
5 answers Last reply Best Answer
More about x299 z370 pcie lanes gpu nic
  1. Yes, you will be fine with the Z-370, enjoy!
    Reply to Will_49
  2. Your GPU will probably be limited to an x8 if you add 10GE NIC. A dual port 10GE is usually an x8 card. I would recommend an Intel 520 card. The Z370 also only has one PCIe M.2 slot. The other is SATA. I don't think a Z370 is what you want if you really want dual M.2 PCIe slots.
    You might actually want a ThreadRipper if PCIe connectivity is that important.
    Reply to kanewolf
  3. kanewolf said:
    Your GPU will probably be limited to an x8 if you add 10GE NIC. A dual port 10GE is usually an x8 card. I would recommend an Intel 520 card. The Z370 also only has one PCIe M.2 slot. The other is SATA. I don't think a Z370 is what you want if you really want dual M.2 PCIe slots.
    You might actually want a ThreadRipper if PCIe connectivity is that important.


    I was thinking of ThreadRipper and i value the price per performance you get but saw benchmarks for the intel platforms on the programs i'm looking to use (Adobe Suite, Lightroom, Photoshop, Premiere Pro etc) I was drawn to intel. If i will be limited using z370, i'm basically looking at 1 GPU at x8, 1 nvme at x8 and thats pretty much it right? going with the x299 platform i9 7900x, i was getting slightly less performance on some but gaining 44 pcie lanes. Would you know if i do go with x299, if i can raid 0 more than one nvme?
    Reply to kj777
  4. kanewolf said:
    Your GPU will probably be limited to an x8 if you add 10GE NIC. A dual port 10GE is usually an x8 card. I would recommend an Intel 520 card. The Z370 also only has one PCIe M.2 slot. The other is SATA. I don't think a Z370 is what you want if you really want dual M.2 PCIe slots.
    You might actually want a ThreadRipper if PCIe connectivity is that important.


    I was thinking of ThreadRipper and i value the price per performance you get but saw benchmarks for the intel platforms on the programs i'm looking to use (Adobe Suite, Lightroom, Photoshop, Premiere Pro etc) I was drawn to intel. If i will be limited using z370, i'm basically looking at 1 GPU at x8, 1 nvme at x8 and thats pretty much it right? going with the x299 platform i9 7900x, i was getting slightly less performance on some applications but gaining 44 pcie lanes. Would you know if i do go with x299, if i can raid 0 more than one nvme?
    Reply to kj777
  5. Best answer
    kj777 said:
    kanewolf said:
    Your GPU will probably be limited to an x8 if you add 10GE NIC. A dual port 10GE is usually an x8 card. I would recommend an Intel 520 card. The Z370 also only has one PCIe M.2 slot. The other is SATA. I don't think a Z370 is what you want if you really want dual M.2 PCIe slots.
    You might actually want a ThreadRipper if PCIe connectivity is that important.


    I was thinking of ThreadRipper and i value the price per performance you get but saw benchmarks for the intel platforms on the programs i'm looking to use (Adobe Suite, Lightroom, Photoshop, Premiere Pro etc) I was drawn to intel. If i will be limited using z370, i'm basically looking at 1 GPU at x8, 1 nvme at x8 and thats pretty much it right? going with the x299 platform i9 7900x, i was getting slightly less performance on some but gaining 44 pcie lanes. Would you know if i do go with x299, if i can raid 0 more than one nvme?


    A Z370 would have your GPU at x8, your 10GE at x8 and your NVMe at x4 (off the chipset). I would never recommend a RAID 0 for any home use.
    Reply to kanewolf
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