Average Bench: 58.8% (756th of 1017)

more Based on 842 user benchmarks.  Models: ADATA SX900, ADATA SX 900, ADAT SX900, ADATA SSD SX900 512GB, ADATA SSD SX900 512GB-DL2, ADATA SSD SX900 512GB-DL, ADATA SSD SX900 512GB-, ADATA SSD SX900, ADATA SSD SX900 512GB-DL2-TCG

Average average bench

The Adata XPG SX900 512GB averaged 41.2% 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-64Thread Mixed IO Speed 120MB/s
Avg. 4K Random Read Speed 24.6MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Adata XPG SX900 512GB is 23.6%. This is a relatively narrow range which indicates that the Adata XPG SX900 512GB performs reasonably consistently under varying real world conditions.


Avg. 4K Random Write Speed 17.9MB/s
Avg. 4K-64Thread Write Speed 96.3MB/s

Average Bench

(Based on 842 samples)
Min Avg Max
317 Read 394 461
138 Write 247 334
202 Mixed 277 335
146 SusWrite 226 285
63.9% 286 MB/s
Min Avg Max
15.7 4K Read 24.6 30.6
10.2 4K Write 17.9 21.7
12.3 4K Mixed 20.8 25.5
73.4% 21.1 MB/s
Min Avg Max
93.2 DQ Read 205 230
66.8 DQ Write 96.3 111
26.4 DQ Mixed 120 144
97.1% 140 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
287GB free (System drive)
Firmware: 5.0.2c
SusWrite @10s intervals: 219 224 228 225 201 147 MB/s
Read 460
Write 156
Mixed 255
SusWrite 207
60% 270 MB/s
4K Read 30
4K Write 20.7
4K Mixed 23.9
87% 24.9 MB/s
DQ Read 224
DQ Write 120
DQ Mixed 154
119% 166 MB/s
38GB free (System drive)
Firmware: 5.8.2
SusWrite @10s intervals: 226 186 145 133 126 149 MB/s
Read 387
Write 191
Mixed 240
SusWrite 161
54% 245 MB/s
4K Read 27.5
4K Write 20.9
4K Mixed 24.6
84% 24.3 MB/s
DQ Read 218
DQ Write 99.5
DQ Mixed 128
103% 148 MB/s
107GB free (System drive)
Firmware: 5.4.1
SusWrite @10s intervals: 185 166 156 174 148 133 MB/s
Read 370
Write 311
Mixed 319
SusWrite 160
65% 290 MB/s
4K Read 24.6
4K Write 18.7
4K Mixed 22
75% 21.8 MB/s
DQ Read 216
DQ Write 98.6
DQ Mixed 128
102% 147 MB/s
842 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 22,660,519 SSDs tested.


AmazonUS $1893 years
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Typical XPG SX900 512GB Builds (Compare 4,285 builds) See popular component choices, score breakdowns and rankings.
Gaming 24%
Desktop 56%
Workstation 40%
Jet ski

Motherboard: Dell Precision Tower 5810

EDIT WITH CUSTOM PC BUILDER Value: 9% - Terrible Total price: $629

Popular XPG SX900 512GB 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.

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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) February 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

Added n/a ago.

1017 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 i5-9600K $210Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $356AMD RX 590 $185Samsung 850 Pro 512GB $249
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $683SanDisk Extreme 16GB $24
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