Dave2150
Senior member
- Jan 20, 2015
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As the others pointed out, it doesn't matter how many PCIe lanes comes of the PCH. You'll still be limited by the PCIe 3.0 x4 "DMI 3.0" interface between CPU and PCH. Which can already be saturated by a decent PCIe SSD.
When I heard that, all my enthusiasm for regular Skylake went right out the window. Honestly how much cost and effort would it take to add a couple, or four, general purpose PCIe lanes from the CPU? Especially since they're changing socket anyway. AMD has been doing this since Llano...
DMI 3.0 is 4 GB/s.
As far as I'm aware, the only currently released consumer PCI-E NVMe SSD is the Intel 750 series, which caps out at 2GB/s from what I saw in reviews.
How is DMI 3.0 on Skylake not adequate?
I plan to upgrade to Skylake and will be installing a PCI-E nvme ssd at the same time, though if Skylake z109 can't fully utilize it, I'll have to jump on x99 instead I guess.