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Toshiba XG5 1TB OEM M.2 NVMe PCIe SSD Review (Page 5)

By Jon Coulter from Jul 26, 2017 @ 15:03 CDT
TweakTown Rating: 94%Manufacturer: Toshiba


Version and / or Patch Used: 3.0 Technical Preview

CrystalDiskMark is disk benchmark software that allows us to benchmark 4K and 4K queue depths with accuracy. Note: Crystal Disk Mark 3.0 Technical Preview was used for these tests since it offers the ability to measure native command queuing at QD4. When evaluating CDM results, we focus on 4K random performance at QD1 and QD4.


Focusing in on QD1 and QD4 reveals once again what we've seen all along; random read performance takes a big hit at low queue depths when an OS resides on the disk. Running as a secondary attached device, the XG5 performs excellent at low queue depths which bodes well for the upcoming consumer version.


When tested empty the XG5 again delivers stunning sequential write performance. When the XG5 is running an OS, sequential write performance is pure TLC; the SLC cache is completely bypassed. Random write performance still manages to hold strong even when an OS is on the disk.


Version and / or Patch Used: 1.8.5611.39791

AS SSD determines the performance of SSDs. The tool contains four synthetic as well as three practice tests. The synthetic tests are to determine the sequential and random read and write performance of the SSD. We evaluate AS SSD performance in terms of overall score. We are looking for a minimum score of 2,000 when evaluating NVMe SSDs


AS SSD is a demanding test, and whether the XG5 is running as an OS disk or a secondary device it is able to deliver a better score than the previous generation XG3 and RD400. The PM961 gets the better of the XG5 mainly because it has superior multi-threaded random performance.

So far, the PM961 has shown itself to deliver better synthetic performance than the XG5 due to the way Toshiba programmed the XG5 to benefit laptop user experience. Now let's delve into what really matters - moderate workload performance, and even more importantly application performance as served up by SYSmark 2014 SE.

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