Average Bench: 64.6% (413th of 848)

Based on 4,486 user benchmarks.  Models: ADATA SP550, ADATA SP 550, ADAT SP550

Above average average bench

The Adata Premier SP550 240GB averaged 35.4% 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 26.5MB/s
Avg. Sequential Read Speed 470MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata Premier SP550 240GB is 32.1%. This is a relatively narrow range which indicates that the Adata Premier SP550 240GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 27.6MB/s
Avg. 4K-64Thread Write Speed 113MB/s

Average Bench

(Based on 4,486 samples)
Min Avg Max
359 Read 470 495
180 Write 239 261
168 Mixed 251 273
70.3% 320 MB/s
Min Avg Max
17.5 4K Read 26.5 33.7
17.7 4K Write 43.8 64
8.9 4K Mixed 17 24.8
85.1% 29.1 MB/s
Min Avg Max
22.2 DQ Read 156 304
32.8 DQ Write 113 180
8.35 DQ Mixed 27.6 49.7
49.6% 98.9 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
22GB free
Firmware: P0330AA Max speed: SATA 3.0 600 MB/s
Read 481
Write 244
Mixed 233
70% 320 MB/s
4K Read 25.4
4K Write 52.1
4K Mixed 22.4
95% 33.3 MB/s
DQ Read 288
DQ Write 163
DQ Mixed 41.1
80% 164 MB/s
112GB free
Firmware: O1203AB Max speed: SATA 3.0 600 MB/s
Read 476
Write 250
Mixed 272
73% 333 MB/s
4K Read 23.3
4K Write 43.5
4K Mixed 20.9
85% 29.3 MB/s
DQ Read 283
DQ Write 179
DQ Mixed 10.5
67% 157 MB/s
208GB free
Firmware: O1203AB Max speed: SATA 3.0 600 MB/s
Read 332
Write 133
Mixed 151
45% 205 MB/s
4K Read 23.4
4K Write 26
4K Mixed 18.5
73% 22.6 MB/s
DQ Read 159
DQ Write 73.1
DQ Mixed 45
52% 92.4 MB/s
4,486 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,386,282 SSDs tested.


NeweggUS $73.991 month ago.
BHPhotoUS $74.004 months ago.
AmazonUS $91.8910 days ago.
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Typical Premier SP550 240GB Builds (Compare 11,983 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 79%
Workstation 63%

Motherboard: Asus Z170 PRO GAMING - $149

EDIT WITH CUSTOM PC BUILDER Value: 89% - Excellent Total price: $1,003

Popular Premier SP550 240GB 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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How it works

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  • - CPU tests include: integer, floating and string.
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  • - RAM tests include: single/multi core bandwidth and latency.
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Solid State Drive Rankings (Price vs Performance) March 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 SM2256. Flash Memory: SK Hynix 16nm TLC.

Faster and bigger, your superior upgrade solution....

Added 9 months ago.


5 months ago.

Really fast SSD for a good price.

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848 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

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Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $430SanDisk Extreme 32GB $26
Seagate Barracuda 7200.14 1TB $50Corsair Vengeance LPX DDR4 3200 C16 2x8GB $135SanDisk Ultra Fit 32GB $9
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