Average Bench: 62.2% (466th of 853)

Based on 164 user benchmarks.  Model: ADATA SP550

Above average average bench

The Adata Premier SP550 960GB averaged 37.8% 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 23MB/s
Avg. Sequential Read Speed 423MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Adata Premier SP550 960GB is 23.5%. 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 31.2MB/s
Avg. Sequential Mixed IO Speed 238MB/s

Average Bench

(Based on 164 samples)
Min Avg Max
352 Read 423 442
203 Write 242 262
189 Mixed 238 255
66.3% 301 MB/s
Min Avg Max
16.3 4K Read 23 27.9
24.9 4K Write 46.9 64.7
9.08 4K Mixed 16.6 22
80.9% 28.8 MB/s
Min Avg Max
20.5 DQ Read 169 300
37.4 DQ Write 122 176
8.64 DQ Mixed 31.2 45.5
54.3% 107 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
893GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 408
Write 247
Mixed 246
66% 300 MB/s
4K Read 28
4K Write 65.4
4K Mixed 20.1
103% 37.8 MB/s
DQ Read 254
DQ Write 174
DQ Mixed 41.2
78% 157 MB/s
355GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 423
Write 259
Mixed 247
68% 310 MB/s
4K Read 17.2
4K Write 38.1
4K Mixed 17.7
69% 24.3 MB/s
DQ Read 289
DQ Write 171
DQ Mixed 41.1
81% 167 MB/s
809GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 428
Write 250
Mixed 249
68% 309 MB/s
4K Read 22
4K Write 38
4K Mixed 19
78% 26.3 MB/s
DQ Read 229
DQ Write 121
DQ Mixed 39.7
66% 130 MB/s
382GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 346
Write 232
Mixed 239
60% 273 MB/s
4K Read 17.9
4K Write 23.4
4K Mixed 16.4
61% 19.3 MB/s
DQ Read 233
DQ Write 104
DQ Mixed 43.4
65% 127 MB/s
164 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,328,095 SSDs tested.


AmazonUS $299.992 mins ago.
EbayUS $310.209 mins ago.
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Typical Premier SP550 960GB Builds (Compare 5,776 builds) See popular component choices, score breakdowns and rankings.
Gaming 92%
Nuclear submarine
Desktop 77%
Workstation 62%

Motherboard: MSI Z170A GAMING M5 (MS-7977) - $140

EDIT WITH CUSTOM PC BUILDER Value: 82% - Excellent Total price: $1,273

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.

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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.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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Solid State Drive Rankings (Price vs Performance) July 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 13 months ago.

853 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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AMD Ryzen 7 1700 $291AMD RX 480 $379Samsung 850 Pro 256GB $120
Intel Core i5-7600K $235Nvidia GTX 1060-6GB $33Samsung 850 Evo 500GB $23
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Seagate Barracuda 3TB (2016) $83G.SKILL Trident Z DDR4 3200 C14 4x16GB $714SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $40HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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