Average Bench: 76.8% (522nd of 1058)

Based on 6,178 user benchmarks.  Models: ADATA SX900, ADATA SX 900, ADAT SX900, ADATA SSD SX900 256GB-, ADATA SSD SX900 256GB-DL2-TCG

The SX900 and SX910 are both Sandforce 2881 based SSDs from Adata. The only difference between them is their warranty period: 5 years for the SX910 vs 3 years for the SX900. Both drives utilize Intel-Micron 25Nm MLC so the differences must be at a "sub-atomic" level, or at least beyond the scope of the specs. Once again as with all Sandforce 2881 based drives performance is skewed in favour of reads over writes. With a peak sequential read of 510 MB/s and corresponding sequential write of 309 MB/s the SX series does not break any records but, like all SSDs, they do offer speeds way in excess of mechanical hard drives. Overall performance lags the SSD group leaders by around 40% and there are far faster, cheaper and newer (non-Sandforce) alternatives such as the Samsung 840 Evo or the Sandisk Ultra Plus available. [Jan '14 SSDrivePro]

Good average bench

The Adata XPG SX900 256GB averaged 23.2% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Adata XPG SX900 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 193MB/s
Avg. 4K Random Mixed IO Speed 35.4MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata XPG SX900 256GB is 33.3%. This is a relatively narrow range which indicates that the Adata XPG SX900 256GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 188MB/s
Avg. Sequential Write Speed 255MB/s
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Average Bench

(Based on 6,178 samples)
Min Avg Max
300 Read 370 430
188 Write 255 298
219 Mixed 271 302
126 SusWrite 188 237
60.6% 271 MB/s
Min Avg Max
20.6 4K Read 28.5 34.4
38.2 4K Write 79.5 111
22.5 4K Mixed 35.4 43.3
131% 47.8 MB/s
Min Avg Max
161 DQ Read 246 299
106 DQ Write 216 265
109 DQ Mixed 193 257
155% 218 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
238GB free
Firmware: 5.0.7a
SusWrite @10s intervals: 250 235 241 236 241 237 MB/s
Read 392
Write 301
Mixed 292
SusWrite 240
69% 306 MB/s
4K Read 30.1
4K Write 84.9
4K Mixed 39.5
141% 51.5 MB/s
DQ Read 290
DQ Write 267
DQ Mixed 164
154% 240 MB/s
19GB free (System drive)
Firmware: 5.6.0
SusWrite @10s intervals: 141 132 143 161 131 148 MB/s
Read 309
Write 267
Mixed 262
SusWrite 143
55% 245 MB/s
4K Read 27.3
4K Write 99.2
4K Mixed 42.6
148% 56.4 MB/s
DQ Read 263
DQ Write 182
DQ Mixed 229
169% 225 MB/s
214GB free (System drive)
Firmware: 5.8.2
SusWrite @10s intervals: 124 125 118 118 137 125 MB/s
Read 288
Write 266
Mixed 236
SusWrite 124
51% 229 MB/s
4K Read 20.9
4K Write 78.3
4K Mixed 32.3
114% 43.8 MB/s
DQ Read 265
DQ Write 241
DQ Mixed 253
190% 253 MB/s
6,178 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 55,019,615 SSDs tested.

 Prices

MSRP ≈ $188 @ launch in Mar '12
AmazonUS $1644 years
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Typical XPG SX900 256GB Builds (Compare 4,070 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 46%
Yacht
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 36%
Jet ski

Motherboard: Gigabyte GA-Z77-DS3H - $280

EDIT WITH CUSTOM PC BUILDER Value: 47% - Average Total price: $890

Popular XPG SX900 256GB 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
Solid State Drive Rankings (Price vs Performance) May 2022 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]

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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.

 Comments

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

Breaking through the limits...

Added 8 years ago.

Good

5 years ago.

Not stable, numerous crashes (Win7x64Pro), failure to write crash dumps, etc. Customer support very poor as well.


Below average

8 years ago.

Review  tweakers.net/...

Image  tweakers.net/...
Jan '13 AS SSD Benchmark Scores

Jan '13 AS SSD Benchmark Scores


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1058 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

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