Average Bench: 64.7% (411th of 848)

Based on 4,025 user benchmarks.  Models: ADATA SP550, ADATA SP 550, ADAT SP550

Above average average bench

The Adata Premier SP550 240GB averaged 35.3% 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 26.9MB/s
Avg. Sequential Read Speed 469MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata Premier SP550 240GB is 30.6%. 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 27.4MB/s
Avg. 4K-64Thread Write Speed 113MB/s

Average Bench

(Based on 4,025 samples)
Min Avg Max
347 Read 469 495
170 Write 236 261
147 Mixed 246 274
69.7% 317 MB/s
Min Avg Max
19.2 4K Read 26.9 33.2
20 4K Write 44.3 64.5
9.52 4K Mixed 17.1 24.4
86.2% 29.5 MB/s
Min Avg Max
22.9 DQ Read 156 300
34.4 DQ Write 113 180
9.05 DQ Mixed 27.4 49
49.5% 98.9 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
53GB free
Firmware: P0330AA Max speed: SATA 3.0 600 MB/s
Read 486
Write 254
Mixed 266
74% 336 MB/s
4K Read 30.6
4K Write 49.6
4K Mixed 23.2
102% 34.4 MB/s
DQ Read 280
DQ Write 163
DQ Mixed 18.3
68% 154 MB/s
103GB free
Firmware: P0121AA Max speed: SATA 3.0 600 MB/s
Read 494
Write 238
Mixed 265
73% 332 MB/s
4K Read 31.4
4K Write 49
4K Mixed 23.4
103% 34.6 MB/s
DQ Read 293
DQ Write 154
DQ Mixed 46.5
82% 164 MB/s
162GB free
Firmware: P012 Max speed: SATA 3.0 600 MB/s
Read 414
Write 238
Mixed 247
66% 300 MB/s
4K Read 28.9
4K Write 19.8
4K Mixed 16.2
75% 21.6 MB/s
DQ Read 174
DQ Write 70.3
DQ Mixed 42.3
52% 95.6 MB/s
4,025 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,595,717 SSDs tested.


BHPhotoUS $74.005 months ago.
NeweggUS $79.9918 days ago.
AmazonUS $96.1412 mins ago.
EbayUS $104.7818 mins ago.
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Typical Premier SP550 240GB Builds (Compare 12,809 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 80%
Workstation 63%

Motherboard: Asus Z170 PRO GAMING - $141

EDIT WITH CUSTOM PC BUILDER Value: 91% - Outstanding Total price: $956

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

  • - 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.
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  • - 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) April 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 10 months ago.


6 months ago.

Really fast SSD for a good price.

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

 Best User Rated

The Best.
Intel Core i7-7700K $310Nvidia GTX 1070 $330Samsung 850 Evo 250GB $106
Intel Core i5-7600K $229AMD RX 480 $217Samsung 850 Pro 256GB $140
Intel Pentium G4560 $60Nvidia GTX 1060-6GB $219Samsung 850 Evo 500GB $170
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $122SanDisk Extreme 64GB $35
Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $700SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $46Corsair Vengeance LPX DDR4 3200 C16 2x8GB $137SanDisk Ultra Fit 32GB $9
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