Average Bench: 62.6% (448th of 848)

Based on 116 user benchmarks.  Model: ADATA SP550

Above average average bench

The Adata Premier SP550 960GB averaged 37.4% 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 23.1MB/s
Avg. Sequential Read Speed 423MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Adata Premier SP550 960GB is 23.7%. 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 31.6MB/s
Avg. Sequential Mixed IO Speed 237MB/s

Average Bench

(Based on 116 samples)
Min Avg Max
353 Read 423 441
197 Write 242 262
186 Mixed 237 255
66.2% 300 MB/s
Min Avg Max
16.5 4K Read 23.1 27.9
26.3 4K Write 47.8 64.5
9.01 4K Mixed 16.8 22.1
81.8% 29.2 MB/s
Min Avg Max
20.5 DQ Read 175 301
34.4 DQ Write 122 177
8.93 DQ Mixed 31.6 45.7
55.2% 110 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
138GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 437
Write 249
Mixed 236
68% 307 MB/s
4K Read 28.2
4K Write 62.6
4K Mixed 22.1
104% 37.6 MB/s
DQ Read 307
DQ Write 175
DQ Mixed 46.3
87% 176 MB/s
423GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 429
Write 243
Mixed 233
66% 302 MB/s
4K Read 27.2
4K Write 58
4K Mixed 21.5
100% 35.6 MB/s
DQ Read 273
DQ Write 168
DQ Mixed 44.3
80% 162 MB/s
111GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 433
Write 251
Mixed 250
69% 311 MB/s
4K Read 23.6
4K Write 57.8
4K Mixed 21.1
93% 34.2 MB/s
DQ Read 309
DQ Write 170
DQ Mixed 45.8
86% 175 MB/s
381GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 435
Write 251
Mixed 243
68% 310 MB/s
4K Read 24.3
4K Write 53.2
4K Mixed 18.5
89% 32 MB/s
DQ Read 273
DQ Write 170
DQ Mixed 43.3
80% 162 MB/s
116 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,574,185 SSDs tested.


NeweggUS $279.492 days ago.
AmazonUS $299.991 day ago.
EbayUS $310.201 day ago.
Send price feedback
Typical Premier SP550 960GB Builds (Compare 4,712 builds) See popular component choices, score breakdowns and rankings.
Gaming 93%
Nuclear submarine
Desktop 79%
Workstation 63%

Motherboard: MSI Z170A GAMING M5 (MS-7977) - $130

EDIT WITH CUSTOM PC BUILDER Value: 89% - Excellent Total price: $1,150

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) 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.

▲Like   ▼Dislike

You have viewed 39 pages, please contribute.

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 Pentium G4560 $60AMD RX 480 $220Samsung 850 Pro 256GB $140
Intel Core i5-7600K $229Nvidia GTX 1060-6GB $219Samsung 850 Evo 500GB $170
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $130SanDisk Extreme 32GB $22
Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $700SanDisk Extreme 64GB $35
Seagate Barracuda 7200.14 1TB $46Corsair Vengeance LPX DDR4 3200 C16 2x8GB $115SanDisk Ultra Fit 32GB $9
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback