Average Bench: 80.3% (436th of 1026)

Based on 182 user benchmarks.  Model: TOSHIBA THNSNJ512GDNU

Very good average bench

The Toshiba THNSNJ512GDNU 512GB averaged just 19.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Toshiba THNSNJ512GDNU 512GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 176MB/s
Avg. 4K Random Mixed IO Speed 30.6MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Toshiba THNSNJ512GDNU 512GB is 43.4%. This is a relatively wide range which indicates that the Toshiba THNSNJ512GDNU 512GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 282MB/s
Avg. Sequential Write Speed 364MB/s

Average Bench

(Based on 182 samples)
Min Avg Max
347 Read 457 508
119 Write 364 471
215 Mixed 396 499
115 SusWrite 282 448
84.1% 375 MB/s
Min Avg Max
10 4K Read 19.7 26.1
23.8 4K Write 60.6 90.3
11.5 4K Mixed 30.6 43.5
101% 37 MB/s
Min Avg Max
21 DQ Read 247 360
60 DQ Write 202 308
17.6 DQ Mixed 176 329
145% 208 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
30GB free (System drive)
Firmware: JUTA0101
SusWrite @10s intervals: 306 166 103 108 103 108 MB/s
Read 460
Write 302
Mixed 396
SusWrite 149
73% 327 MB/s
4K Read 23.3
4K Write 46.7
4K Mixed 31.9
101% 34 MB/s
DQ Read 344
DQ Write 234
DQ Mixed 266
205% 282 MB/s
182 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 28,549,449 SSDs tested.

Typical THNSNJ512GDNU 512GB Builds (Compare 282 builds) See popular component choices, score breakdowns and rankings.
Gaming 15%
Tree trunk
Desktop 60%
Workstation 44%
Speed boat

System: Toshiba Satellite S55t-C


Popular THNSNJ512GDNU 512GB systems:

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.
  • - 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.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) July 2020 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.


1026 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 i5-9600K $190Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $47
Intel Core i5-9400F $150Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $368Nvidia RTX 2070S (Super) $510Samsung 850 Pro 512GB $249
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $67SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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