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Alienware Aurora R5 M.2 Speed
I just received my new Alienware Aurora R5 with a 512 GB M.2 PCIe SSD. The specific drive that came with it was "Toshiba XG3 512GB NVMe THNSN5512GPU7". Doing a benchmark test with HD Tune Pro, I am seeing average transfer speed of 512 MB/s. A sequential read speed test is around 600-700 MB/s. The specs for the drive say it should be able to reach up to 2,500 MB/s or at least significantly faster than what I am seeing. Are these the expected results with PCIe or is there something wrong with my machine?
triryan2
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September 19th, 2016 09:00
Running a different utility (Crystal Disk Mark), I am seeing read/write speeds in the 750-800 MB/s range, which is faster than SATA, so perhaps this is the expected performance?
triryan2
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September 21st, 2016 10:00
I have done additional investigation, and it appears as if I am seeing pcie 3.0 *x2* speeds instead of *x4* speeds. I have the GTX 1080 and 6700k processor. Does this combination limit the number of pcie lanes available to the m.2 drive?
qqldd
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September 25th, 2016 04:00
I also want to know the answer. Do you have any updates?