Average Bench: 95.4% (221st of 1011)

Based on 16,303 user benchmarks.  Models: ADATA SU800, ADAT SU800

Excellent average bench

The Adata Ultimate SU800 256GB averaged just 4.6% 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 198MB/s
Avg. 4K Random Mixed IO Speed 42.5MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Adata Ultimate SU800 256GB is 67.6%. 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 321MB/s
Avg. Sequential Mixed IO Speed 369MB/s

Average Bench

(Based on 16,303 samples)
Min Avg Max
372 Read 474 516
137 Write 394 473
89.5 Mixed 369 455
73.1 SusWrite 321 467
87.4% 389 MB/s
Min Avg Max
19.6 4K Read 31 40.6
26.5 4K Write 81.2 118
22.4 4K Mixed 42.5 58
144% 51.6 MB/s
Min Avg Max
37 DQ Read 263 389
45.9 DQ Write 274 360
40.3 DQ Mixed 198 283
168% 245 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
124GB free (System drive)
Firmware: R0427ANR
SusWrite @10s intervals: 215 401 432 441 442 437 MB/s
Read 477
Write 436
Mixed 411
SusWrite 395
97% 430 MB/s
4K Read 27.9
4K Write 82.5
4K Mixed 36.8
133% 49.1 MB/s
DQ Read 230
DQ Write 352
DQ Mixed 262
206% 281 MB/s
216GB free (System drive)
Firmware: R0427ANR
SusWrite @10s intervals: 444 425 411 398 395 398 MB/s
Read 459
Write 396
Mixed 385
SusWrite 412
93% 413 MB/s
4K Read 26.4
4K Write 46.6
4K Mixed 33.3
107% 35.4 MB/s
DQ Read 388
DQ Write 351
DQ Mixed 284
236% 341 MB/s
133GB free (System drive)
Firmware: P0801A
SusWrite @10s intervals: 141 73 57 56 40 54 MB/s
Read 431
Write 236
Mixed 118
SusWrite 69.8
47% 214 MB/s
4K Read 26.8
4K Write 24.5
4K Mixed 28.3
90% 26.5 MB/s
DQ Read 252
DQ Write 39.7
DQ Mixed 45.6
59% 112 MB/s
16,303 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,133,049 SSDs tested.


Approx. $90 @ launch in Sep '16
AmazonUS $3517 mins
EbayUS $351 min
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Typical Ultimate SU800 256GB Builds (Compare 33,386 builds) See popular component choices, score breakdowns and rankings.
Gaming 55%
Desktop 66%
Battle cruiser
Workstation 56%

Motherboard: Asus PRIME B350-PLUS - $100

EDIT WITH CUSTOM PC BUILDER Value: 63% - Good Total price: $580

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 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.

Poor (edit your comment) Add link

1 day ago.

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


2 months ago.

best price, fast performance


15 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 $148Nvidia GTX 1660S (Super) $234Crucial MX500 250GB $45
Intel Core i5-9600K $210Nvidia GTX 1660 $210Samsung 850 Evo 120GB $150
Intel Core i7-9700K $340Nvidia GTX 1660-Ti $260Samsung 860 Evo 250GB $49
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Ultra Fit 32GB $14
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