Average Bench: 76.6% (542nd of 1072)

Based on 6,726 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 23.3% 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 194MB/s
Avg. 4K Random Mixed IO Speed 35.2MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata XPG SX900 256GB is 32.2%. 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 190MB/s
Avg. Sequential Write Speed 256MB/s
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Average Bench

(Based on 6,726 samples)
Min Avg Max
300 Read 368 423
193 Write 256 298
220 Mixed 270 302
129 SusWrite 190 236
60.6% 271 MB/s
Min Avg Max
19.1 4K Read 28.3 34.7
39.6 4K Write 79.7 111
23.1 4K Mixed 35.2 43.3
130% 47.8 MB/s
Min Avg Max
170 DQ Read 245 298
124 DQ Write 219 264
111 DQ Mixed 194 256
156% 219 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
67GB free
Firmware: 5.8.2
SusWrite @10s intervals: 216 210 210 211 212 209 MB/s
Read 345
Write 306
Mixed 291
SusWrite 211
65% 288 MB/s
4K Read 32.8
4K Write 99
4K Mixed 42.7
157% 58.2 MB/s
DQ Read 223
DQ Write 202
DQ Mixed 200
154% 208 MB/s
82GB free (System drive)
Firmware: 5.6.0
SusWrite @10s intervals: 211 191 178 197 180 163 MB/s
Read 381
Write 234
Mixed 281
SusWrite 187
60% 271 MB/s
4K Read 27.8
4K Write 73.8
4K Mixed 35.2
126% 45.6 MB/s
DQ Read 222
DQ Write 244
DQ Mixed 236
177% 234 MB/s
32GB free (System drive)
Firmware: 5.8.2
SusWrite @10s intervals: 156 168 133 149 139 130 MB/s
Read 396
Write 280
Mixed 299
SusWrite 146
62% 280 MB/s
4K Read 28.3
4K Write 76.3
4K Mixed 34.4
127% 46.3 MB/s
DQ Read 250
DQ Write 245
DQ Mixed 179
153% 225 MB/s
238GB free
Firmware: 5.2.2
SusWrite @10s intervals: 198 192 188 188 192 185 MB/s
Read 344
Write 256
Mixed 266
SusWrite 190
59% 264 MB/s
4K Read 22.9
4K Write 57.7
4K Mixed 31.8
106% 37.5 MB/s
DQ Read 238
DQ Write 206
DQ Mixed 222
166% 222 MB/s
54GB free (System drive)
Firmware: 5.4.1
SusWrite @10s intervals: 167 163 165 183 156 145 MB/s
Read 307
Write 218
Mixed 274
SusWrite 163
54% 240 MB/s
4K Read 22.4
4K Write 75.4
4K Mixed 29.8
112% 42.5 MB/s
DQ Read 193
DQ Write 239
DQ Mixed 207
159% 213 MB/s
6,726 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,633,084 SSDs tested

 Prices

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MSRP ≈ $188 @ launch in Mar '12
AmazonUS $1646 years
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Typical XPG SX900 256GB Builds (Compare 1,932 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 41%
Speed boat
Desktop
Desktop 77%
Battleship
Workstation
Workstation 32%
Sail boat

Motherboard: Gigabyte GA-Z77-DS3H - $280

EDIT WITH CUSTOM PC BUILDER Value: 62% - Good Total price: $696

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 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 value for money 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
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  • - Compare your in-game FPS to other users with your hardware
Solid State Drive Rankings (Price vs Performance) April 2024 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 10 years ago.

Good

7 years ago.

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


Below average

10 years ago.

Review  tweakers.net/...

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

Jan '13 AS SSD Benchmark Scores


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1072 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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