Average Bench: 66.7% (416th of 885)

Based on 3,031 user benchmarks.  Models: ADATA SP900, ADATA SSD SP900 256GB-DL2, ADATA SP 900

Above average average bench

The Adata SP900 256GB averaged 33.2% 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 Random Write Speed 75.8MB/s
Avg. 4K Random Read Speed 22.6MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata SP900 256GB is 30.4%. This is a relatively narrow range which indicates that the Adata SP900 256GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Read Speed 137MB/s
Avg. Sequential Write Speed 233MB/s

Average Bench

(Based on 3,031 samples)
Min Avg Max
327 Read 464 511
178 Write 233 278
202 Mixed 285 341
72.1% 327 MB/s
Min Avg Max
11.1 4K Read 22.6 31.5
37.9 4K Write 75.8 111
9 4K Mixed 14.5 20.6
93% 37.6 MB/s
Min Avg Max
20.9 DQ Read 137 268
61.2 DQ Write 174 255
8.43 DQ Mixed 40.8 78.3
62.7% 117 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
36GB free
Firmware: 5.0.
Read 477
Write 240
Mixed 319
76% 345 MB/s
4K Read 25
4K Write 97.4
4K Mixed 15.5
109% 46 MB/s
DQ Read 232
DQ Write 211
DQ Mixed 45.4
82% 163 MB/s
155GB free
Firmware: 5.8.2 Max speed: SATA 3.0 600 MB/s
Read 469
Write 224
Mixed 272
71% 322 MB/s
4K Read 18.8
4K Write 95.8
4K Mixed 15.2
99% 43.3 MB/s
DQ Read 167
DQ Write 237
DQ Mixed 52.7
82% 152 MB/s
69GB free
Firmware: 6.0.Bc Max speed: SATA 3.0 600 MB/s
Read 480
Write 212
Mixed 274
71% 322 MB/s
4K Read 21.9
4K Write 65.5
4K Mixed 16.2
89% 34.5 MB/s
DQ Read 238
DQ Write 202
DQ Mixed 84.1
100% 175 MB/s
5GB free
Firmware: 5.0.6 Max speed: SATA 3.0 600 MB/s
Read 422
Write 222
Mixed 235
64% 293 MB/s
4K Read 9.16
4K Write 71.2
4K Mixed 16.1
72% 32.2 MB/s
DQ Read 268
DQ Write 205
DQ Mixed 63.6
94% 179 MB/s
3,031 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 5,659,521 SSDs tested.


AmazonUS $10018 days
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Typical SP900 256GB Builds (Compare 17,759 builds) See popular component choices, score breakdowns and rankings.
Gaming 92%
Nuclear submarine
Desktop 79%
Workstation 62%

Motherboard: Asus Z170 PRO GAMING - $157

EDIT WITH CUSTOM PC BUILDER Value: 76% - Very good Total price: $1,206

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) February 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.


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

Added n/a ago.
885 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 $430Samsung 850 Evo 250GB $88
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $146
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $185SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $975SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $206SanDisk Extreme 16GB $18
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