Average Bench: 72.2% (287th of 859)

Based on 2,284 user benchmarks.  Models: ADATA SU800, ADAT SU800

Good average bench

The Adata Ultimate SU800 256GB averaged 27.7% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K Random Read Speed 26.3MB/s
Avg. Sequential Read Speed 496MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata Ultimate SU800 256GB is 37.8%. This is a relatively wide range which indicates that the Adata Ultimate SU800 256GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 35.7MB/s
Avg. 4K-64Thread Read Speed 138MB/s

Average Bench

(Based on 2,284 samples)
Min Avg Max
403 Read 496 516
93.2 Write 305 344
105 Mixed 320 357
82.6% 374 MB/s
Min Avg Max
17.7 4K Read 26.3 33.1
19.5 4K Write 53.9 83.9
8.21 4K Mixed 19.2 29.4
92.9% 33.1 MB/s
Min Avg Max
22.5 DQ Read 138 248
30 DQ Write 138 239
8.99 DQ Mixed 35.7 60.6
55% 104 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
103GB free
Firmware: P0801A Max speed: SATA 3.0 600 MB/s
Read 520
Write 349
Mixed 358
90% 409 MB/s
4K Read 33.4
4K Write 88.1
4K Mixed 29.6
135% 50.4 MB/s
DQ Read 237
DQ Write 242
DQ Mixed 60.1
94% 180 MB/s
193GB free
Firmware: 5A Max speed: SATA 3.0 600 MB/s
Read 431
Write 343
Mixed 329
82% 368 MB/s
4K Read 20.5
4K Write 47
4K Mixed 17.2
78% 28.2 MB/s
DQ Read 169
DQ Write 119
DQ Mixed 47.8
62% 112 MB/s
2,284 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,837,917 SSDs tested.


EbayUS $89.9913 mins ago.
AmazonUS $94.999 mins ago.
NeweggUS $109.991 day ago.
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Typical Ultimate SU800 256GB Builds (Compare 4,593 builds) See popular component choices, score breakdowns and rankings.
Gaming 92%
Nuclear submarine
Desktop 73%
Workstation 82%
Aircraft carrier

Motherboard: Asus PRIME X370-PRO - $150

EDIT WITH CUSTOM PC BUILDER Value: 89% - Excellent Total price: $920

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.

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Solid State Drive Rankings (Price vs Performance) September 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]


Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC NAND

Intelligent SLC caching and DRAM cache buffer...

Added 7 months ago.


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859 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.
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AMD Ryzen 7 1700 $270AMD RX 480 $350Samsung 850 Pro 256GB $120
Intel Core i5-7600K $220Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $150
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $724SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $152SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $56HyperX Fury DDR4 2133 C14 2x8GB $141SanDisk Extreme 16GB $20
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