, 1 min read

SSD Speed on Dell XPS 13 9350

Original post is here eklausmeier.goip.de/blog/2016/07-27-ssd-speed-on-dell-xps-13-9350.

In Hard-Disk and SSD Speed Comparisons I compared a Mushkin SSD with 60 GB against a ADATA with 128 GB against a Seagate 1 TB hard disk drive. The SSD's had roughly three times the speed of the hard disk drive. I.e., 380 MB/s vs. 134 MB/s for reading Mushkin vs. Seagate, and 297 MB/s vs. 131 MB/s for writing ADATA vs. Seagate.

I also compared USB-thumb-drives against above Seagate 1 TB hard drive in Hard-Disk and USB Drive Speed Comparisons. Read times were comparable (100-200 MB/s), while for writing the Seagate drive was roughly 4 to 5-times faster (100 MB/s vs 20 MB/s).

Hard drives speeds and prices in 2013 are given in Harddisk Drive Speed in MB/s. Read speeds are roughly 200 MB/s for enterprise drives.

Now the read- and write-speeds of the SSD in the Dell XPS 13 9350 are quite astonishing: up to 1.5 GB/s for reading, 532 MB/s for writing. Even if you use LUKS/dm-crypt the values are 840 MB/s for reading, and 428 MB/s for writing. Below are the measurements using gnome-disk-utility.

Without encryption: Screenshot from 2016-07-17 14-47-25

![Screenshot from 2016-07-17 14-49-27](**/img/screenshot-from-2016-07-17-14-49-27.png)

Screenshot from 2016-07-17 14-49-07

Screenshot from 2016-07-17 14-48-10

Screenshot from 2016-07-17 14-47-43

With encryption: Screenshot from 2016-07-17 14-47-25

Screenshot from 2016-07-17 14-46-50