Average Bench: 61.7% (483rd of 863)

Based on 218 user benchmarks.  Model: ADATA SP550

Above average average bench

The Adata Premier SP550 960GB averaged 38.2% 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 22.9MB/s
Avg. Sequential Read Speed 424MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Adata Premier SP550 960GB is 24.8%. This is a relatively narrow range which indicates that the Adata Premier SP550 960GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 30.5MB/s
Avg. 4K-64Thread Write Speed 118MB/s

Average Bench

(Based on 218 samples)
Min Avg Max
353 Read 424 442
204 Write 242 262
195 Mixed 239 255
66.4% 302 MB/s
Min Avg Max
15.5 4K Read 22.9 27.9
22.9 4K Write 45.6 64.8
8.68 4K Mixed 16.3 21.8
79.7% 28.3 MB/s
Min Avg Max
20.3 DQ Read 165 300
34.4 DQ Write 118 177
8.42 DQ Mixed 30.5 45.5
52.9% 105 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
710GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 443
Write 249
Mixed 245
69% 312 MB/s
4K Read 24.5
4K Write 45.3
4K Mixed 10.9
75% 26.9 MB/s
DQ Read 247
DQ Write 120
DQ Mixed 10.7
54% 126 MB/s
354GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 439
Write 229
Mixed 250
67% 306 MB/s
4K Read 23.3
4K Write 42.4
4K Mixed 10.9
72% 25.5 MB/s
DQ Read 23.3
DQ Write 138
DQ Mixed 40.1
43% 67.3 MB/s
710GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 433
Write 239
Mixed 237
67% 303 MB/s
4K Read 19.3
4K Write 30.6
4K Mixed 10.4
59% 20.1 MB/s
DQ Read 22.2
DQ Write 34.6
DQ Mixed 9.72
13% 22.1 MB/s
218 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 4,480,081 SSDs tested.


AmazonUS $299.9329 secs ago.
EbayUS $310.185 mins ago.
Send price feedback
Typical Premier SP550 960GB Builds (Compare 631 builds) See popular component choices, score breakdowns and rankings.
Gaming 119%
Desktop 79%
Workstation 96%
Nuclear submarine

Motherboard: MSI X370 XPOWER GAMING TITANIUM (MS-7A31) - $270

EDIT WITH CUSTOM PC BUILDER Value: 92% - Outstanding Total price: $1,584

Popular Premier SP550 960GB 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 (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) November 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 17 months ago.

▲Like ▼Dislike

You have viewed 25 pages, please contribute.

863 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 $280Nvidia GTX 1070 $410Samsung 850 Evo 250GB $88
AMD Ryzen 7 1700 $250AMD RX 480 $240Samsung 850 Pro 256GB $110
Intel Core i5-7600K $180Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $150
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $160SanDisk Extreme 64GB $30
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $17
Seagate Barracuda 7200.14 1TB $52Corsair Vengeance LPX DDR4 3200 C16 2x8GB $199SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback