Average Bench: 67% (665th of 1026)

Based on 5,024 user benchmarks.  Models: ADATA SX900, ADATA SX 900, ADAT SX900

Above average average bench

The Adata XPG SX900 128GB averaged 33.0% 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 129MB/s
Avg. 4K Random Read Speed 27.3MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata XPG SX900 128GB is 32.8%. This is a relatively narrow range which indicates that the Adata XPG SX900 128GB performs reasonably consistently under varying real world conditions.


Avg. Sustained Write Speed 125MB/s
Avg. Sequential Write Speed 151MB/s

Average Bench

(Based on 5,024 samples)
Min Avg Max
306 Read 373 431
105 Write 151 230
152 Mixed 198 240
90.3 SusWrite 125 160
46.8% 212 MB/s
Min Avg Max
18.1 4K Read 27.3 34.7
34.6 4K Write 75.1 108
20.4 4K Mixed 32.2 41.3
122% 44.9 MB/s
Min Avg Max
88 DQ Read 167 213
98.7 DQ Write 145 189
52 DQ Mixed 129 169
104% 147 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
31GB free (System drive)
Firmware: 5.8.2
SusWrite @10s intervals: 122 121 123 111 124 125 MB/s
Read 358
Write 147
Mixed 203
SusWrite 121
46% 207 MB/s
4K Read 33.8
4K Write 106
4K Mixed 39.1
157% 59.5 MB/s
DQ Read 187
DQ Write 150
DQ Mixed 161
123% 166 MB/s
43GB free (System drive)
Firmware: 5.0.7b
SusWrite @10s intervals: 117 113 120 115 120 116 MB/s
Read 373
Write 118
Mixed 198
SusWrite 117
44% 202 MB/s
4K Read 27.6
4K Write 69.7
4K Mixed 32.9
121% 43.4 MB/s
DQ Read 176
DQ Write 145
DQ Mixed 120
101% 147 MB/s
53GB free (System drive)
Firmware: 5.8.2a
SusWrite @10s intervals: 129 115 124 121 121 123 MB/s
Read 370
Write 144
Mixed 193
SusWrite 122
46% 207 MB/s
4K Read 26.1
4K Write 64.7
4K Mixed 33.6
117% 41.5 MB/s
DQ Read 172
DQ Write 134
DQ Mixed 135
106% 147 MB/s
5,024 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 29,419,242 SSDs tested.


Approx. $71 @ launch in Mar '12
AmazonUS $10320 months
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Typical XPG SX900 128GB Builds (Compare 1,057 builds) See popular component choices, score breakdowns and rankings.
Gaming 30%
Desktop 64%
Workstation 49%

System: Asus CG8270

EDIT WITH CUSTOM PC BUILDER Value: 47% - Average Total price: $457

Popular XPG SX900 128GB 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.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) August 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.


Controller: LSI SandForce SF2281VB1-SDC. Flash Memory: Intel Micron Synchronous 25nm MLC

Breaking through the limits...

Added 5 years ago.

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.
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Intel Core i5-9400F $156Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $335Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $46
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
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