Average Bench: 90.7% (317th of 1071)

Based on 40,725 user benchmarks.  Models: ADATA SU800, ADAT SU800

Excellent average bench

The Adata Ultimate SU800 256GB averaged just 9.3% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Adata Ultimate SU800 256GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 187MB/s
Avg. 4K Random Mixed IO Speed 41.4MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Adata Ultimate SU800 256GB is 57.6%. This is a relatively wide range which indicates that the Adata Ultimate SU800 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 262MB/s
Avg. Sequential Mixed IO Speed 356MB/s

Average Bench

(Based on 40,725 samples)
Min Avg Max
367 Read 469 516
170 Write 370 471
161 Mixed 356 443
78.1 SusWrite 262 464
81.6% 364 MB/s
Min Avg Max
19.4 4K Read 29.8 40
30.3 4K Write 81.1 120
24.7 4K Mixed 41.4 55.8
141% 50.8 MB/s
Min Avg Max
148 DQ Read 273 381
62 DQ Write 271 360
52.1 DQ Mixed 187 279
164% 244 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
170GB free (System drive)
Firmware: R0427ANR
SusWrite @10s intervals: 211 228 256 266 271 270 MB/s
Read 496
Write 268
Mixed 298
SusWrite 250
73% 328 MB/s
4K Read 27
4K Write 85.5
4K Mixed 36.3
133% 49.6 MB/s
DQ Read 242
DQ Write 270
DQ Mixed 193
163% 235 MB/s
175GB free (System drive)
Firmware: R0427ANR
SusWrite @10s intervals: 209 248 259 268 271 272 MB/s
Read 498
Write 267
Mixed 305
SusWrite 254
74% 331 MB/s
4K Read 25.6
4K Write 78.1
4K Mixed 35.3
125% 46.3 MB/s
DQ Read 240
DQ Write 271
DQ Mixed 193
162% 235 MB/s
128GB free (System drive)
Firmware: R0427ANR
SusWrite @10s intervals: 171 156 211 276 277 277 MB/s
Read 394
Write 347
Mixed 354
SusWrite 228
74% 331 MB/s
4K Read 26.9
4K Write 60.1
4K Mixed 39.1
123% 42 MB/s
DQ Read 381
DQ Write 334
DQ Mixed 191
189% 302 MB/s
40,725 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 65,445,621 SSDs tested.


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MSRP ≈ $90 @ launch in Sep '16
AmazonUS $4015 mins
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Typical Ultimate SU800 256GB Builds (Compare 18,241 builds) See popular component choices, score breakdowns and rankings.
Gaming 2%
Tree trunk
Desktop 61%
Workstation 2%
Tree trunk

Disqualified System: bin bin

EDIT WITH CUSTOM PC BUILDER Value: 62% - Good Total price: $337

Popular Ultimate SU800 256GB 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.
  • - 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) March 2023 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: Silicon Motion SM2258. Flash Memory: Micron 3D TLC NAND

Intelligent SLC caching and DRAM cache buffer...

Added 6 years ago.

Excellent (edit your comment) Add link

13 months ago.

Have one in my laptop speeds are very close to advertised (96%) for such a low price


3 years ago.

Is a very good product, i bouth one and this SSD got better my pc


17 months ago.

Having mine for around 4 years


2 years ago.

Sleeper SSD


4 years ago.

Really good SSD for the money

1071 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 i5-13600K $315Nvidia RTX 3060-Ti $420Crucial MX500 250GB $31
Intel Core i5-12600K $194Nvidia RTX 3060 $365Samsung 850 Evo 120GB $106
Intel Core i5-12400F $155Nvidia RTX 4070-Ti $830Samsung 860 Evo 250GB $50
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $43SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $381SanDisk Ultra Fit 32GB $16
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