Average Bench: 68.2% (657th of 1040)

Based on 5,430 user benchmarks.  Models: ADATA SX900, ADATA SX 900, ADAT SX900

Above average average bench

The Adata XPG SX900 128GB averaged 31.8% 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 135MB/s
Avg. 4K Random Mixed IO Speed 32.9MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata XPG SX900 128GB is 30.3%. 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 128MB/s
Avg. Sequential Write Speed 154MB/s

Average Bench

(Based on 5,430 samples)
Min Avg Max
305 Read 376 435
121 Write 154 228
163 Mixed 201 248
94.6 SusWrite 128 164
47.5% 215 MB/s
Min Avg Max
18.4 4K Read 27.5 34.4
40.3 4K Write 77.7 110
21.5 4K Mixed 32.9 41.8
125% 46 MB/s
Min Avg Max
107 DQ Read 169 200
107 DQ Write 147 197
89.3 DQ Mixed 135 170
107% 150 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
44GB free
Firmware: 5.0.7b
SusWrite @10s intervals: 118 130 132 129 128 120 MB/s
Read 419
Write 146
Mixed 204
SusWrite 126
49% 224 MB/s
4K Read 29.2
4K Write 93.1
4K Mixed 36.6
140% 53 MB/s
DQ Read 176
DQ Write 142
DQ Mixed 123
102% 147 MB/s
34GB free (System drive)
Firmware: 5.4.1
SusWrite @10s intervals: 113 102 114 112 106 105 MB/s
Read 358
Write 153
Mixed 187
SusWrite 109
44% 201 MB/s
4K Read 25.9
4K Write 81.7
4K Mixed 30.6
122% 46.1 MB/s
DQ Read 175
DQ Write 133
DQ Mixed 149
113% 152 MB/s
5,430 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 32,795,235 SSDs tested.


Approx. $71 @ launch in Mar '12
AmazonUS $10323 months
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Typical XPG SX900 128GB Builds (Compare 99 builds) See popular component choices, score breakdowns and rankings.
Gaming 23%
Desktop 82%
Aircraft carrier
Workstation 20%

System: Asus CG8480

EDIT WITH CUSTOM PC BUILDER Value: 51% - Above average Total price: $623

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) October 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.

1040 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 i5-9600K $199Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $140Nvidia RTX 3080 $700Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $170Samsung 860 Evo 250GB $50
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $548SanDisk Extreme 16GB $28
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