Average Bench: 74.9% (563rd of 1058)

Based on 7,987 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 184MB/s
Avg. 4K Random Mixed IO Speed 35.3MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata SP900 256GB is 34.1%. This is a relatively narrow range which indicates that the Adata SP900 256GB performs reasonably consistently under varying real world conditions.


Avg. Sustained Write Speed 178MB/s
Avg. Sequential Write Speed 253MB/s

Average Bench

(Based on 7,987 samples)
Min Avg Max
294 Read 356 417
192 Write 253 301
220 Mixed 266 299
113 SusWrite 178 229
59% 264 MB/s
Min Avg Max
17.2 4K Read 27.2 33.8
37.4 4K Write 81.2 111
21.2 4K Mixed 35.3 44.4
130% 47.9 MB/s
Min Avg Max
91.1 DQ Read 222 287
121 DQ Write 219 264
103 DQ Mixed 184 251
148% 208 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
143GB free
Firmware: 5.8.2
SusWrite @10s intervals: 175 158 173 172 163 159 MB/s
Read 328
Write 254
Mixed 253
SusWrite 167
56% 250 MB/s
4K Read 27.5
4K Write 97.3
4K Mixed 39.9
144% 54.9 MB/s
DQ Read 175
DQ Write 238
DQ Mixed 162
135% 192 MB/s
19GB free (System drive)
Firmware: 5.0.7a
SusWrite @10s intervals: 160 139 136 139 143 155 MB/s
Read 399
Write 264
Mixed 278
SusWrite 146
61% 272 MB/s
4K Read 23.6
4K Write 46.4
4K Mixed 28.2
96% 32.7 MB/s
DQ Read 266
DQ Write 216
DQ Mixed 163
143% 215 MB/s
7,987 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,299,915 SSDs tested.


AmazonUS $1903 years
Send price feedback
Typical SP900 256GB Builds (Compare 13,205 builds) See popular component choices, score breakdowns and rankings.
Gaming 8%
Tree trunk
Desktop 69%
Battle cruiser
Workstation 7%
Tree trunk

Motherboard: Dell OptiPlex 9020

EDIT WITH CUSTOM PC BUILDER Value: 47% - Average Total price: $431

Popular SP900 256GB 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
Solid State Drive Rankings (Price vs Performance) September 2021 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.
1058 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 i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $394Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback