Gigabyte Aorus H370 Gaming 3 WIFI review

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Performance - M.2 PCIe NVMe SSD Storage Performance

M.2 PCIe SSD Storage Performance

M.2 brings small form factor add-in SSDs to our PC platform at blazing fast speeds. There is an abbreviation for that, NGFF (Next Generation Form Factor). It is not just that though, SATA3 has not been amongst us for that long, but the SSDs evolved in a very fast manner, making SATA3 already a bottleneck for current generation SSDs as SATA3 SSDs end at roughly 550 MB/sec in terms of read/write performance. 

  

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Original M.2 PCI-E SSDs are merely small form factor SSDs that communicate over your PCI Express lanes, providing 10 Gbps of bandwidth, eliminating SATA3 bottlenecks. The cool thing with recent motherboards is the increased bandwidth to 32 Gbps by using a x4 PCIe link. 

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The lower slot, seen in the upper photo, only has two PCIe lanes available. This M.2 slot thus is limited in performance. Not that 1500 MB/sec is slow of course.

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The upper slot with heatsink utilized four full PCIe Gen 3.0 lanes and, as you can see, performance quickly rises.

M.2 PCIe links directly to your PCIe lanes and, as such, is an interface with much more available bandwidth. You can expect performance in the upper 2,500 MB/sec range with these products. This, however, is a heavily used boot C:\ SSD.

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