Average Bench: 74.9% (505th of 1011)

Based on 5,044 user benchmarks.  Models: ADATA SP900, ADATA SSD SP900 256GB-DL2, ADATA SP 900

Good average bench

The Adata SP900 256GB averaged 25.1% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K-64Thread Mixed IO Speed 176MB/s
Avg. 4K Random Mixed IO Speed 35.8MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata SP900 256GB is 37.7%. This is a relatively wide range which indicates that the Adata SP900 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 173MB/s
Avg. Sequential Write Speed 251MB/s

Average Bench

(Based on 5,044 samples)
Min Avg Max
295 Read 353 416
187 Write 251 307
215 Mixed 262 296
104 SusWrite 173 232
58.1% 260 MB/s
Min Avg Max
19 4K Read 27.6 34.2
36.1 4K Write 84 117
23.3 4K Mixed 35.8 45.7
132% 49.2 MB/s
Min Avg Max
82.8 DQ Read 212 289
92.9 DQ Write 218 268
48.8 DQ Mixed 176 240
143% 202 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
181GB free (System drive)
Firmware: 5.8.2
SusWrite @10s intervals: 160 190 162 155 181 144 MB/s
Read 290
Write 214
Mixed 231
SusWrite 165
50% 225 MB/s
4K Read 24.2
4K Write 83.9
4K Mixed 34.7
126% 47.6 MB/s
DQ Read 142
DQ Write 239
DQ Mixed 152
126% 178 MB/s
91GB free
Firmware: 5.0.6
SusWrite @10s intervals: 264 223 222 239 221 225 MB/s
Read 318
Write 316
Mixed 246
SusWrite 232
63% 278 MB/s
4K Read 30.1
4K Write 63.9
4K Mixed 36.3
126% 43.4 MB/s
DQ Read 33.1
DQ Write 89.7
DQ Mixed 43.6
38% 55.5 MB/s
5,044 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,132,121 SSDs tested.


AmazonUS $19020 months
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Typical SP900 256GB Builds (Compare 46,272 builds) See popular component choices, score breakdowns and rankings.
Gaming 31%
Sail boat
Desktop 52%
Workstation 22%

Disqualified System: bin bin

EDIT WITH CUSTOM PC BUILDER Value: 39% - Below average Total price: $581

Popular SP900 256GB 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.

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: LSI SandForce SF2281. NAND Flash: Intel Micron Synchronous 25nm MLC

Added n/a 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 $148Nvidia GTX 1660S (Super) $234Crucial MX500 250GB $45
Intel Core i5-9600K $210Nvidia GTX 1660 $210Samsung 850 Evo 120GB $150
Intel Core i7-9700K $340Nvidia GTX 1660-Ti $260Samsung 860 Evo 250GB $49
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Ultra Fit 32GB $14
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