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The biggest thing I've seen that Skylake provides for high-performance gaming is 26 PCIE lanes. This means you can run a PCIE 3.0 4x+ lane NVMe SSD like the In
by cdr 11y ago
The biggest thing I've seen that Skylake provides for high-performance gaming is 26 PCIE lanes.
This means you can run a PCIE 3.0 4x+ lane NVMe SSD like the Intel 750 while also running a 3.0 16x GPU (or two GPUs in SLI/CrossFireX). Given an appropriate board, anyway - I haven't looked at Skylake boards.
The performance increase of PCIE NVMe SSDs over SATA SSDs is amazing. SSDs are already great of course, but the Intel 750 can decrease load times by another order of magnitude.
Looking at the linked motherboard, its PCIE 3.0 slots are shared bandwidth, which isn't taking advantage of Skylake at all.
Edit: Actually, looking at the launch boards in Anandtech's review, most of them are routing the extra PCIE 3.0 lanes to M.2 ports (potentially a step backwards from U.2 but forwards from SATA). Getting maximum performance out of a NVMe SSD is seemingly still going to be restricted to only certain high-end boards for the time being.
At a glance, it looks like the "MSI Z170A Gaming M9 ACK" board has a dedicated 3.0 x4 slot separate and supports U.2, so there's at least some available, but it's $400.
Edit2: Apparently Skylake M.2 slots can provide full 3.0 x4 performance, so they're probably fine.
- paulannesley 11y agoNote that most/all of the current M.2 SSDs are running as AHCI devices, not NVMe. There's an OEM Samsung NVMe unit not available for retail yet. Apparently the performance difference between the AHCI and NVMe version isn't big, anyway. Reference: http://anandtech.com/show/9396/samsung-sm951-nvme-256gb-pcie-ssd-review http://anandtech.com/show/9396/samsung-sm951-nvme-256gb-pcie... Edit: here's the key line regarding a modest improvement for small random access: > Typically the NVMe version offers about 10-20% improvement in average latency over the AHCI version, which is a healthy boost in performance given that the two utilize identical hardware.