Toshiba XG6 review: The first SSD with 96-layer 3D-NAND!

Is Toshiba now competitive with Samsung and WD?



AS SSD works with uncompressed data and performs both read and write tests. Testing begins with 4 kB data blocks, with one instruction at a time, and then with 4 kB data blocks with 64 simultaneous instructions. Finally, a sequential read/write test is also carried out, which provides a measure for working with very large files. AS SSD also determines a total score on the basis of all the tests. Although the tests largely overlap with the Iometer tests, we run AS SSD because you can also easily run this benchmark yourself (download link) in order to make a comparison with your own SSD.

Based on all of the different tests AS SSD produces total-, read- and write scores. 

In AS SSD, the Toshiba XG6 scores a total of 4973 points, leaving just behind both the Samsung 970 Evo and WD Black 2018. Toshiba wins particularly convincingly when it comes to writing, but also when it comes to reading, the XG6 can compete with the high-end competition.

  • Total score
  • Read score
  • Write score

The underlying read tests are sequential read, reading 4k data blocks at random with 1 or 64 at the same time and the average access time.

When reading sequentially, we arrive at 2733 MB/s, which brings the Toshiba XG6 close to the top models of Samsung and WD.

  • Sequential
  • 4k (1 thread)
  • 4k (64 thread)
  • Access time

The underlying write tests are sequential write, writing 4k data blocks at random with 1 or 64 at the same time and the average access time.

Sequential writing is almost as fast as on the Samsung 970 Pro, leaving behind the Evo and WD Black. Only the Kingston DCP1000 is even faster here. Especially with 4kB blocks with 64 threads, Toshiba also scores very well.

  • Sequential
  • 4k (1 thread)
  • 4k (64 thread)
  • Access time

Product discussed in this review

  Product Lowest price

Toshiba XG6 1TB

SSD, 1024 GB, PCI-Express 3.0 x4, Toshiba TC58NCP090GSD, 3180 MB/s, 2960 MB/s, M.2 2280

Specifications Test results Reviews

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