Average Bench: 77.3% (261st of 908)

Based on 122 user benchmarks.  Model: TOSHIBA THNSNJ256GMCT

Good average bench

The Toshiba THNSNJ256GMCT 256GB averaged 22.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Toshiba THNSNJ256GMCT 256GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 77MB/s
Avg. Sequential Read Speed 485MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Toshiba THNSNJ256GMCT 256GB is 42.2%. This is a relatively wide range which indicates that the Toshiba THNSNJ256GMCT 256GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Read Speed 154MB/s
Avg. 4K-64Thread Write Speed 156MB/s

Average Bench

(Based on 122 samples)
Min Avg Max
417 Read 485 515
110 Write 374 475
219 Mixed 417 499
94.7% 425 MB/s
Min Avg Max
11.5 4K Read 19.3 25
30.5 4K Write 58 86.4
11.6 4K Mixed 24.8 38.7
91.7% 34 MB/s
Min Avg Max
16.5 DQ Read 154 316
46 DQ Write 156 289
10.7 DQ Mixed 77 198
79.3% 129 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
173GB free
Firmware: JTT10101 Max speed: SATA 3.0 600 MB/s
Read 494
Write 462
Mixed 496
108% 484 MB/s
4K Read 22
4K Write 58.3
4K Mixed 35.9
110% 38.7 MB/s
DQ Read 281
DQ Write 197
DQ Mixed 129
126% 202 MB/s
62GB free
Firmware: JTT10101 Max speed: SATA 3.0 600 MB/s
Read 425
Write 356
Mixed 372
86% 384 MB/s
4K Read 18.6
4K Write 58.4
4K Mixed 29
96% 35.4 MB/s
DQ Read 24.9
DQ Write 162
DQ Mixed 108
79% 98.6 MB/s
74GB free
Firmware: JTT10101 Max speed: SATA 3.0 600 MB/s
Read 469
Write 442
Mixed 392
97% 434 MB/s
4K Read 12.2
4K Write 18.4
4K Mixed 8.63
39% 13.1 MB/s
DQ Read 13.9
DQ Write 24.3
DQ Mixed 8.92
10% 15.7 MB/s
122 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 6,038,946 SSDs tested.

Typical THNSNJ256GMCT 256GB Builds (Compare 163 builds) See popular component choices, score breakdowns and rankings.
Gaming 13%
Tree trunk
Desktop 44%
Speed boat
Workstation 24%

System: Toshiba PORTEGE Z30-A


Popular THNSNJ256GMCT 256GB systems:

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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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Solid State Drive Rankings (Price vs Performance) March 2018 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.


908 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 i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $150
Intel Core i5-8600K $243AMD RX 480 $400Samsung 850 Pro 256GB $120
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $195SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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