Average Bench: 85% (343rd of 1011)

Based on 1,091 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 15.0% 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 265MB/s
Avg. 4K Random Mixed IO Speed 37.1MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Toshiba Q Series Pro 128GB is 50%. This is a relatively wide range which indicates that the Toshiba Q Series Pro 128GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 277MB/s
Avg. Sequential Write Speed 368MB/s

Average Bench

(Based on 1,091 samples)
Min Avg Max
351 Read 454 507
107 Write 368 464
209 Mixed 382 445
80.4 SusWrite 277 455
83% 370 MB/s
Min Avg Max
14 4K Read 22.2 28.1
36.4 4K Write 74 107
21.7 4K Mixed 37.1 47.3
120% 44.4 MB/s
Min Avg Max
30.8 DQ Read 304 367
87.3 DQ Write 245 322
42.7 DQ Mixed 265 346
201% 271 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
106GB free
Firmware: JTRA0102
SusWrite @10s intervals: 445 455 451 458 459 458 MB/s
Read 501
Write 460
Mixed 439
SusWrite 454
104% 464 MB/s
4K Read 23.9
4K Write 77.3
4K Mixed 40.9
130% 47.4 MB/s
DQ Read 366
DQ Write 326
DQ Mixed 351
262% 348 MB/s
117GB free
Firmware: JTRA0102
SusWrite @10s intervals: 313 156 93 98 98 99 MB/s
Read 504
Write 457
Mixed 441
SusWrite 143
86% 386 MB/s
4K Read 26
4K Write 88.2
4K Mixed 43.5
142% 52.6 MB/s
DQ Read 238
DQ Write 239
DQ Mixed 252
185% 243 MB/s
1,091 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,368,697 SSDs tested.


Approx. $112 @ launch in Oct '13
AmazonUS HDTS312XZSTA $6615 months
Send price feedback
Typical Q Series Pro 128GB Builds (Compare 18,121 builds) See popular component choices, score breakdowns and rankings.
Gaming 104%
Desktop 72%
Workstation 78%

Motherboard: Asus CROSSHAIR VI HERO - $158

EDIT WITH CUSTOM PC BUILDER Value: 49% - Average Total price: $1,321

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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) November 2019 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


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

Drive faster, play harder...


Added 5 years ago.

Poor (edit your comment) Add link

6 days 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.


2 months ago.

Faster than most of the competition from that era


5 years ago.

1011 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.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-9400F $140Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9600K $195AMD RX 590 $185Samsung 850 Evo 120GB $150
Intel Core i7-9700K $340Nvidia RTX 2060 $325Samsung 860 Evo 250GB $51
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $609SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85Corsair Vengeance LPX DDR4 3200 C16 2x8GB $68SanDisk Extreme 16GB $24
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer Feedback