Average Bench: 93% (237th of 1011)

Based on 14,473 user benchmarks.  Models: ADATA SU800, ADAT SU800

Excellent average bench

The Adata Ultimate SU800 256GB averaged just 7.0% 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 188MB/s
Avg. 4K Random Mixed IO Speed 42MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Adata Ultimate SU800 256GB is 63.4%. 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 296MB/s
Avg. Sequential Mixed IO Speed 364MB/s

Average Bench

(Based on 14,473 samples)
Min Avg Max
360 Read 469 516
119 Write 384 470
87.9 Mixed 364 448
72.7 SusWrite 296 465
84.8% 378 MB/s
Min Avg Max
19.2 4K Read 30.4 39.7
27.9 4K Write 80.9 119
22.9 4K Mixed 42 56.7
143% 51.1 MB/s
Min Avg Max
34.3 DQ Read 261 387
49.5 DQ Write 266 360
33 DQ Mixed 188 283
162% 238 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
197GB free (System drive)
Firmware: P0801A
SusWrite @10s intervals: 471 474 475 476 475 474 MB/s
Read 515
Write 477
Mixed 442
SusWrite 474
108% 477 MB/s
4K Read 31.5
4K Write 93.4
4K Mixed 45.2
155% 56.7 MB/s
DQ Read 254
DQ Write 343
DQ Mixed 253
204% 283 MB/s
204GB free (System drive)
Firmware: R0427AC
SusWrite @10s intervals: 290 383 420 428 427 427 MB/s
Read 465
Write 416
Mixed 398
SusWrite 396
94% 419 MB/s
4K Read 29.3
4K Write 66.6
4K Mixed 41.5
133% 45.8 MB/s
DQ Read 245
DQ Write 350
DQ Mixed 260
207% 285 MB/s
60GB free (System drive)
Firmware: P0801A
SusWrite @10s intervals: 115 105 44 22 30 60 MB/s
Read 486
Write 200
Mixed 88.2
SusWrite 62.7
46% 209 MB/s
4K Read 30.4
4K Write 30.3
4K Mixed 23.4
92% 28 MB/s
DQ Read 254
DQ Write 25.6
DQ Mixed 205
133% 162 MB/s
14,473 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 17,667,174 SSDs tested.


Approx. $90 @ launch in Sep '16
AmazonUS $381 min
EbayUS $3811 mins
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Typical Ultimate SU800 256GB Builds (Compare 31,752 builds) See popular component choices, score breakdowns and rankings.
Gaming 54%
Desktop 66%
Battle cruiser
Workstation 56%

Motherboard: Asus PRIME B350-PLUS - $140

EDIT WITH CUSTOM PC BUILDER Value: 68% - Good Total price: $588

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) September 2019 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 2 years ago.

Excellent (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


22 days ago.

best price, fast performance


14 months ago.

Really good SSD for the money

1011 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 i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $70
Intel Core i5-9600K $225Nvidia GTX 1660-Ti $278Samsung 850 Evo 500GB $105
AMD Ryzen 5 3600 $195Nvidia RTX 2060S (Super) $429Samsung 850 Pro 256GB $203
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $37G.SKILL Trident Z DDR4 3200 C14 4x16GB $606SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $64Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 16GB $24
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