Average Bench: 59.2% (563rd of 911)

Based on 2,207 user benchmarks.  Models: ADATA SX900, ADATA SX 900, ADAT SX900

Average average bench

The Adata XPG SX900 128GB averaged 40.8% 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 Random Write Speed 72.2MB/s
Avg. 4K Random Read Speed 23.8MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Adata XPG SX900 128GB is 28.4%. This is a relatively narrow range which indicates that the Adata XPG SX900 128GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Write Speed 144MB/s
Avg. 4K-64Thread Read Speed 110MB/s

Average Bench

(Based on 2,207 samples)
Min Avg Max
317 Read 465 508
107 Write 144 222
153 Mixed 206 257
59.1% 271 MB/s
Min Avg Max
16.2 4K Read 23.8 31.4
28.1 4K Write 72.2 106
8.65 4K Mixed 13.6 19.1
91.8% 36.6 MB/s
Min Avg Max
19.6 DQ Read 110 194
43.4 DQ Write 126 184
8.26 DQ Mixed 30.6 52.8
47.3% 89 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
55GB free
Firmware: 5.0.7a Max speed: SATA 3.0 600 MB/s
Read 485
Write 226
Mixed 273
72% 328 MB/s
4K Read 31.7
4K Write 94.6
4K Mixed 23.7
128% 50 MB/s
DQ Read 201
DQ Write 223
DQ Mixed 52.5
84% 159 MB/s
30GB free
Firmware: 5.0.7b Max speed: SATA 3.0 600 MB/s
Read 507
Write 94.2
Mixed 153
54% 251 MB/s
4K Read 23.4
4K Write 16.7
4K Mixed 18.3
68% 19.5 MB/s
DQ Read 76.4
DQ Write 38.9
DQ Mixed 44.3
36% 53.2 MB/s
55GB free
Firmware: 5.8.2 Max speed: SATA 3.0 600 MB/s
Read 296
Write 137
Mixed 162
44% 198 MB/s
4K Read 27.1
4K Write 59.8
4K Mixed 11.5
87% 32.8 MB/s
DQ Read 33
DQ Write 102
DQ Mixed 10.1
24% 48.3 MB/s
88GB free
Firmware: 5.8.2 Max speed: SATA 3.0 600 MB/s
Read 511
Write 69.8
Mixed 115
50% 232 MB/s
4K Read 29.3
4K Write 0.38
4K Mixed 0.76
46% 10.1 MB/s
2,207 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 6,065,016 SSDs tested.


Approx. $71 @ launch in Mar '12
AmazonUS $8615 mins
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Typical XPG SX900 128GB Builds (Compare 12,556 builds) See popular component choices, score breakdowns and rankings.
Gaming 54%
Desktop 49%
Workstation 37%
Jet ski

Motherboard: Asus M5A97 R2.0 - $88

EDIT WITH CUSTOM PC BUILDER Value: 61% - Good Total price: $684

Popular XPG SX900 128GB 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) March 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 SF2281VB1-SDC. Flash Memory: Intel Micron Synchronous 25nm MLC.

Breaking through the limits...

Added 2 years ago.

911 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 i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $150
AMD Ryzen 5 1600 $188AMD RX 480 $400Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $190SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $216SanDisk Extreme 16GB $18
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