Average Bench: 63.8% - 415th / 836

Based on 1,061 user benchmarks.  Models: ADATA SP550, ADATA SP 550, ADAT SP550

Above average average bench

The Adata Premier SP550 480GB averaged 36.1% 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 25MB/s
Avg. Sequential Read Speed 465MB/s
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Above average consistency

The range of scores (95th - 5th percentile) for the Adata Premier SP550 480GB is 30.4%. This is a relatively narrow range which indicates that the Adata Premier SP550 480GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 31.4MB/s
Avg. 4K-64Thread Write Speed 116MB/s

Average Bench

(Based on 1,061 samples)
Min Avg Max
355 Read 465 493
178 Write 234 259
172 Mixed 250 270
69.6% 317 MB/s
Min Avg Max
17.6 4K Read 25 31.9
18.2 4K Write 43.9 65.1
9.45 4K Mixed 17 24.6
82.9% 28.6 MB/s
Min Avg Max
22.8 DQ Read 168 308
35.1 DQ Write 116 179
9.26 DQ Mixed 31.4 48.1
53.3% 105 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
221GB free
Firmware: P0330AA Max speed: SATA 3.0 600 MB/s
Read 478
Write 223
Mixed 244
69% 315 MB/s
4K Read 28.4
4K Write 46.9
4K Mixed 22.7
97% 32.6 MB/s
DQ Read 239
DQ Write 116
DQ Mixed 51.6
72% 135 MB/s
228GB free
Firmware: O1230C
Read 473
Write 241
Mixed 255
71% 323 MB/s
4K Read 23.6
4K Write 33.4
4K Mixed 11
68% 22.7 MB/s
DQ Read 25.2
DQ Write 37.5
DQ Mixed 10.9
14% 24.5 MB/s
57GB free
Firmware: O0730A Max speed: SATA 3.0 600 MB/s
Read 465
Write 237
Mixed 258
70% 320 MB/s
4K Read 17.4
4K Write 22.8
4K Mixed 13.7
56% 17.9 MB/s
DQ Read 92.1
DQ Write 62.1
DQ Mixed 19.3
30% 57.8 MB/s
130GB free
Firmware: O1230C Max speed: SATA 3.0 600 MB/s
Read 412
Write 235
Mixed 239
65% 295 MB/s
4K Read 4.98
4K Write 2.57
4K Mixed 1.79
11% 3.12 MB/s

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,122,423 SSDs tested.


NeweggUS $133.991 hr ago.
OutletPCUS $135.841 month ago.
AmazonUS $143.2411 mins ago.
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Typical Premier SP550 480GB Builds (Compare 4,441 builds) See popular component choices, score breakdowns and rankings.
Gaming 72%
Desktop 54%
Workstation 45%

Motherboard: Asus SABERTOOTH 990FX R2.0 - $182

EDIT WITH CUSTOM PC BUILDER Value: 85% - Excellent Total price: $831

Popular Premier SP550 480GB 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

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) February 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....

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836 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 7200.14 1TB $50HyperX Fury DDR4 2133 C14 2x8GB $123SanDisk Extreme 16GB $18
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