Average Bench: 92% (295th of 1058)

Based on 35,239 user benchmarks.  Models: ADATA SU800, ADAT SU800

Excellent average bench

The Adata Ultimate SU800 256GB averaged just 8.0% 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 185MB/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 60.5%. 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 278MB/s
Avg. Sequential Mixed IO Speed 354MB/s

Average Bench

(Based on 35,239 samples)
Min Avg Max
382 Read 475 515
98.2 Write 365 470
116 Mixed 354 449
81.4 SusWrite 278 459
82.4% 368 MB/s
Min Avg Max
20.8 4K Read 30.5 40.2
27.5 4K Write 80.8 116
22.2 4K Mixed 41.8 56.4
142% 51 MB/s
Min Avg Max
40.8 DQ Read 266 386
50.2 DQ Write 263 359
44.9 DQ Mixed 185 282
161% 238 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
142GB free
Firmware: R0427ANR
SusWrite @10s intervals: 425 432 431 437 435 431 MB/s
Read 502
Write 429
Mixed 430
SusWrite 432
101% 448 MB/s
4K Read 37.2
4K Write 91.9
4K Mixed 51.4
171% 60.2 MB/s
DQ Read 220
DQ Write 183
DQ Mixed 184
142% 195 MB/s
37GB free
Firmware: P1021A
SusWrite @10s intervals: 131 246 84 71 66 84 MB/s
Read 516
Write 486
Mixed 445
SusWrite 114
87% 390 MB/s
4K Read 33.4
4K Write 110
4K Mixed 49.5
172% 64.3 MB/s
DQ Read 254
DQ Write 364
DQ Mixed 258
209% 292 MB/s
32GB free (System drive)
Firmware: P0801A
SusWrite @10s intervals: 247 160 46 55 50 52 MB/s
Read 484
Write 442
Mixed 419
SusWrite 102
81% 361 MB/s
4K Read 29.7
4K Write 92.7
4K Mixed 43.4
150% 55.3 MB/s
DQ Read 254
DQ Write 332
DQ Mixed 256
204% 281 MB/s
35,239 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,501,884 SSDs tested.


MSRP ≈ $90 @ launch in Sep '16
AmazonUS $3813 mins
EbayUS $4422 mins
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Typical Ultimate SU800 256GB Builds (Compare 42,192 builds) See popular component choices, score breakdowns and rankings.
Gaming 51%
Desktop 87%
Aircraft carrier
Workstation 49%

Motherboard: Asus PRIME B450M-A - $78

EDIT WITH CUSTOM PC BUILDER Value: 72% - Very good Total price: $685

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.
  • - 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) August 2021 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 4 years ago.

Poor (edit your comment) Add link

4 days ago.

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


20 months ago.

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


3 years ago.

Really good SSD for the money


11 months ago.

Sleeper SSD

1058 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 i5-11600K $270Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $394Nvidia RTX 3080 $700Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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