Average Bench: 93.6% (261st of 1040)

Based on 29,533 user benchmarks.  Models: ADATA SU800, ADAT SU800

Excellent average bench

The Adata Ultimate SU800 256GB averaged just 6.3% 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 202MB/s
Avg. 4K Random Mixed IO Speed 41.8MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Adata Ultimate SU800 256GB is 63.2%. This is a particularly wide range which indicates that the Adata Ultimate SU800 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 299MB/s
Avg. Sequential Mixed IO Speed 363MB/s

Average Bench

(Based on 29,533 samples)
Min Avg Max
369 Read 475 515
119 Write 375 471
124 Mixed 363 451
74.4 SusWrite 299 464
84.8% 378 MB/s
Min Avg Max
20.1 4K Read 30.2 40.5
30 4K Write 80.8 117
22.5 4K Mixed 41.8 58.1
142% 50.9 MB/s
Min Avg Max
139 DQ Read 275 387
62.2 DQ Write 272 361
48.7 DQ Mixed 202 282
171% 250 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
32GB free
Firmware: P0801A
SusWrite @10s intervals: 208 55 171 472 346 33 MB/s
Read 512
Write 459
Mixed 420
SusWrite 214
90% 401 MB/s
4K Read 31.9
4K Write 96.5
4K Mixed 46.1
158% 58.2 MB/s
DQ Read 254
DQ Write 357
DQ Mixed 255
207% 289 MB/s
84GB free (System drive)
Firmware: R0427ANR
SusWrite @10s intervals: 266 262 268 207 27 235 MB/s
Read 513
Write 272
Mixed 288
SusWrite 211
71% 321 MB/s
4K Read 28.1
4K Write 116
4K Mixed 42.9
159% 62.2 MB/s
DQ Read 251
DQ Write 271
DQ Mixed 199
167% 240 MB/s
67GB free (System drive)
Firmware: R0427ANR
SusWrite @10s intervals: 246 272 378 380 310 390 MB/s
Read 345
Write 347
Mixed 395
SusWrite 329
80% 354 MB/s
4K Read 33
4K Write 54.4
4K Mixed 34.8
123% 40.7 MB/s
DQ Read 36
DQ Write 92
DQ Mixed 49.7
42% 59.2 MB/s
29,533 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 34,799,701 SSDs tested.


Approx. $90 @ launch in Sep '16
AmazonUS $384 mins
EbayUS $3912 mins
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Typical Ultimate SU800 256GB Builds (Compare 27,042 builds) See popular component choices, score breakdowns and rankings.
Gaming 50%
Desktop 88%
Aircraft carrier
Workstation 48%

Motherboard: Asus PRIME B450M-A - $68

EDIT WITH CUSTOM PC BUILDER Value: 79% - Very good Total price: $583

Popular Ultimate SU800 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.

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.
  • - 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) November 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: Silicon Motion SM2258. Flash Memory: Micron 3D TLC NAND

Intelligent SLC caching and DRAM cache buffer...

Added 3 years ago.

Good (edit your comment) Add link

1 month ago.

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


11 months ago.

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


2 years ago.

Really good SSD for the money


2 months ago.

Sleeper SSD

1040 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 i5-9600K $190Nvidia RTX 3070 $500Crucial MX500 250GB $34
Intel Core i5-9400F $150Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $190Samsung 860 Evo 250GB $50
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $64SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $71SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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