Average Bench: 90.7% (319th of 1074)

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 BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
31GB free
Firmware: R0427AC
SusWrite @10s intervals: 446 454 433 256 144 143 MB/s
Read 500
Write 457
Mixed 429
SusWrite 313
95% 425 MB/s
4K Read 33.3
4K Write 82
4K Mixed 46.3
153% 53.9 MB/s
DQ Read 228
DQ Write 338
DQ Mixed 257
202% 274 MB/s
51GB free (System drive)
Firmware: Q0125A
SusWrite @10s intervals: 153 192 87 68 64 87 MB/s
Read 510
Write 481
Mixed 442
SusWrite 108
86% 385 MB/s
4K Read 31.2
4K Write 102
4K Mixed 46.2
161% 60 MB/s
DQ Read 234
DQ Write 364
DQ Mixed 244
200% 281 MB/s
165GB free (System drive)
Firmware: R0427ANR
SusWrite @10s intervals: 277 278 279 279 279 279 MB/s
Read 505
Write 279
Mixed 308
SusWrite 278
76% 343 MB/s
4K Read 25.8
4K Write 85.9
4K Mixed 35.2
130% 49 MB/s
DQ Read 244
DQ Write 279
DQ Mixed 198
167% 240 MB/s
40,725 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,996,079 SSDs tested


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MSRP ≈ $90 @ launch in Sep '16
AmazonUS $6820 days
Send price feedback
Typical Ultimate SU800 256GB Builds (Compare 24,406 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: 58% - Above average Total price: $365

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 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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  • - CPU tests include: integer, floating and string
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Solid State Drive Rankings (Price vs Performance) May 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]


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 7 years ago.

Excellent (edit your comment) Add link

11 months ago.

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


4 years ago.

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


2 years ago.

Having mine for around 4 years


3 years ago.

Sleeper SSD


5 years ago.

Really good SSD for the money

1074 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 i5-12600K $176Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-12400F $124Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-13600K $260Nvidia RTX 4070 $549Samsung 870 Evo 250GB $45
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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