Average Bench: 82.4% (158th of 853)

Based on 678 user benchmarks.  Models: TOSHIBA THNSNJ128GCST, TOSHIBA THNSNJ128GCS

At four months old, the 128GB Toshiba Q Series Pro is the newest SSD in the group test. It's always nice to see new drives pushing established speed boundaries and the Q Series Pro does exactly that. With peak and average sequential read/write speeds of 521/481 and 422/333 MB/s the Q Series Pro beats the 128GB group average peak write speed by 45% and is bested only by the Samsung Evo. A particularly impressive aspect of the Q Series Pro's performance profile is its mixed IO performance where it beats the average of the group leaders by a stunning 50% and sets new sequential/4k mixed IO records of 502/40.4 MB/s. The ability to handle concurrent read and write operations well means that the Q Series Pro will rarely pause for breath, even when faced with varying IO demands, a great server orientated trait. Overall the Q Series Pro has a very robust performance profile and is well priced making it one of the top 128GB SSDs of 2014. [Feb '14 SSDrivePro]


Very good average bench

The Toshiba Q Series Pro 128GB averaged just 17.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Toshiba Q Series Pro 128GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 80.4MB/s
Avg. 4K Random Write Speed 69.8MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Toshiba Q Series Pro 128GB is 55%. This is a relatively wide range which indicates that the Toshiba Q Series Pro 128GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Read Speed 149MB/s
Avg. 4K-64Thread Write Speed 178MB/s

Average Bench

(Based on 678 samples)
Min Avg Max
366 Read 483 519
106 Write 378 479
194 Mixed 407 502
94.1% 423 MB/s
Min Avg Max
15.1 4K Read 21.3 27.5
34.2 4K Write 69.8 110
15.3 4K Mixed 28.7 44.8
106% 40 MB/s
Min Avg Max
19.2 DQ Read 149 330
58.4 DQ Write 178 308
15.6 DQ Mixed 80.4 209
83.7% 136 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
58GB free
Firmware: JTRA0102 Max speed: SATA 3.0 600 MB/s
Read 515
Write 477
Mixed 502
111% 498 MB/s
4K Read 27.3
4K Write 112
4K Mixed 25.1
133% 54.7 MB/s
DQ Read 326
DQ Write 316
DQ Mixed 196
181% 279 MB/s
29GB free
Firmware: JTRA0102 Max speed: SATA 3.0 600 MB/s
Read 505
Write 469
Mixed 498
110% 491 MB/s
4K Read 25.1
4K Write 105
4K Mixed 29.7
132% 53.3 MB/s
DQ Read 26
DQ Write 302
DQ Mixed 192
140% 173 MB/s
29GB free
Firmware: JTRA0102 Max speed: SATA 3.0 600 MB/s
Read 496
Write 465
Mixed 494
108% 485 MB/s
4K Read 18
4K Write 39.3
4K Mixed 28.7
85% 28.6 MB/s
DQ Read 322
DQ Write 287
DQ Mixed 198
178% 269 MB/s
87GB free
Firmware: JTRA0102 Max speed: SATA 3.0 600 MB/s
Read 487
Write 439
Mixed 480
105% 468 MB/s
4K Read 19.1
4K Write 56.7
4K Mixed 20.9
86% 32.3 MB/s
DQ Read 22.8
DQ Write 160
DQ Mixed 12.7
33% 65.2 MB/s
101GB free
Firmware: JTRA0102 Max speed: SATA 3.0 600 MB/s
Read 487
Write 441
Mixed 478
105% 468 MB/s
4K Read 18.8
4K Write 64
4K Mixed 18.6
86% 33.8 MB/s
DQ Read 13.5
DQ Write 169
DQ Mixed 15.2
34% 65.9 MB/s
678 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,339,136 SSDs tested.


AmazonUS HDTS312XZSTA $98.989 days ago.
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Typical Q Series Pro 128GB Builds (Compare 101 builds) See popular component choices, score breakdowns and rankings.
Gaming 71%
Desktop 70%
Workstation 53%

Motherboard: Asus Z87-WS

EDIT WITH CUSTOM PC BUILDER Value: 64% - Good Total price: $990

Popular Q Series Pro 128GB compatible motherboards:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
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  • - Reports are generated and presented on userbenchmark.com.
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Solid State Drive Rankings (Price vs Performance) July 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]


Controller: Toshiba TC358790XBG. NAND Memory: Toshiba 19mn MLC.

Drive faster, play harder...


Added 3 years ago.

Good (edit your comment) Add link

1 month ago.

I own this product for over a year now and I would say that itis a bargaing in terms of speed and consistency for the money.


3 years ago.

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853 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

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