Average Bench: 69.6% (592nd of 1011)

Based on 3,281 user benchmarks.  Models: ADATA SX900, ADATA SX 900, ADAT SX900

Above average average bench

The Adata XPG SX900 128GB averaged 30.4% 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 133MB/s
Avg. 4K Random Write Speed 82.1MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata XPG SX900 128GB is 30.5%. 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 126MB/s
Avg. Sequential Write Speed 151MB/s

Average Bench

(Based on 3,281 samples)
Min Avg Max
314 Read 383 434
117 Write 151 201
162 Mixed 198 236
98.2 SusWrite 126 158
47.4% 214 MB/s
Min Avg Max
19.4 4K Read 27.9 35.2
42.5 4K Write 82.1 113
22.6 4K Mixed 33.7 43
129% 47.9 MB/s
Min Avg Max
108 DQ Read 171 202
109 DQ Write 145 186
49.2 DQ Mixed 133 170
107% 150 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
75GB free
Firmware: 5.0.7a
SusWrite @10s intervals: 147 149 150 152 147 154 MB/s
Read 402
Write 170
Mixed 219
SusWrite 150
52% 235 MB/s
4K Read 29.7
4K Write 69.3
4K Mixed 35.4
127% 44.8 MB/s
DQ Read 198
DQ Write 165
DQ Mixed 135
114% 166 MB/s
64GB free (System drive)
Firmware: 5.0.7a
SusWrite @10s intervals: 137 142 138 140 141 139 MB/s
Read 401
Write 157
Mixed 212
SusWrite 140
50% 227 MB/s
4K Read 24.2
4K Write 51.3
4K Mixed 24.3
95% 33.3 MB/s
DQ Read 130
DQ Write 148
DQ Mixed 132
101% 136 MB/s
3,281 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 16,945,198 SSDs tested.


Approx. $71 @ launch in Mar '12
AmazonUS $1039 months
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Typical XPG SX900 128GB Builds (Compare 735 builds) See popular component choices, score breakdowns and rankings.
Gaming 26%
Desktop 56%
Workstation 35%
Sail boat

System: Asus CG8270

EDIT WITH CUSTOM PC BUILDER Value: 41% - Average Total price: $539

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.
  • - 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) August 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 SF2281VB1-SDC. Flash Memory: Intel Micron Synchronous 25nm MLC

Breaking through the limits...

Added 4 years 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 $143Nvidia GTX 1660 $220Samsung 850 Evo 250GB $86
Intel Core i5-9600K $219Nvidia GTX 1660-Ti $270Samsung 850 Evo 500GB $102
AMD Ryzen 5 3600 $196AMD RX 580 $173Samsung 850 Pro 256GB $97
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $42G.SKILL Trident Z DDR4 3200 C14 4x16GB $799SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 16GB $24
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