Average Bench: 81.8% (447th of 1058)

Based on 8,554 user benchmarks.  Models: ADATA SP550, ADATA SP 550, ADAT SP550

Very good average bench

The Adata Premier SP550 480GB averaged just 18.1% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Adata Premier SP550 480GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 215MB/s
Avg. 4K Random Mixed IO Speed 39.6MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata Premier SP550 480GB is 35.5%. This is a relatively wide range which indicates that the Adata Premier SP550 480GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 146MB/s
Avg. Sequential Mixed IO Speed 337MB/s

Average Bench

(Based on 8,554 samples)
Min Avg Max
348 Read 461 509
113 Write 369 450
124 Mixed 337 396
121 SusWrite 146 167
73.3% 328 MB/s
Min Avg Max
20.5 4K Read 28 33.3
37 4K Write 81.5 113
22.7 4K Mixed 39.6 49.3
136% 49.7 MB/s
Min Avg Max
196 DQ Read 282 340
86.5 DQ Write 271 335
101 DQ Mixed 215 252
178% 256 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
56GB free (System drive)
Firmware: O1230C
SusWrite @10s intervals: 307 218 132 94 93 93 MB/s
Read 503
Write 442
Mixed 356
SusWrite 156
81% 364 MB/s
4K Read 29.9
4K Write 77.7
4K Mixed 42.7
141% 50.1 MB/s
DQ Read 274
DQ Write 294
DQ Mixed 242
194% 270 MB/s
25GB free (System drive)
Firmware: P0330AA
SusWrite @10s intervals: 326 144 132 72 72 72 MB/s
Read 429
Write 369
Mixed 338
SusWrite 136
71% 318 MB/s
4K Read 26
4K Write 85.2
4K Mixed 41.9
138% 51 MB/s
DQ Read 305
DQ Write 315
DQ Mixed 240
200% 287 MB/s
134GB free
Firmware: O0803B5a
SusWrite @10s intervals: 446 171 92 92 93 93 MB/s
Read 507
Write 274
Mixed 376
SusWrite 164
74% 330 MB/s
4K Read 29.1
4K Write 57.5
4K Mixed 26.4
108% 37.7 MB/s
DQ Read 350
DQ Write 327
DQ Mixed 74.9
129% 251 MB/s
8,554 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 56,071,775 SSDs tested.


MSRP ≈ $108 @ launch in Sep '15
AmazonUS $12921 months
Send price feedback
Typical Premier SP550 480GB Builds (Compare 6,318 builds) See popular component choices, score breakdowns and rankings.
Gaming 45%
Speed boat
Desktop 86%
Aircraft carrier
Workstation 39%
Jet ski

Motherboard: Asus Z97-K - $147

EDIT WITH CUSTOM PC BUILDER Value: 68% - Good Total price: $749

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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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 current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
Solid State Drive Rankings (Price vs Performance) June 2022 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


Controller: Silicon Motion SM2256. Flash Memory: SK Hynix 16nm TLC

Faster and bigger, your superior upgrade solution...

Added 6 years ago.

1058 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 i5-12600K $280Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-12400F $170Nvidia RTX 3070 $500Samsung 850 Evo 120GB $111
Intel Core i7-12700K $380Nvidia RTX 3050 $250Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $33Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $470SanDisk Ultra Fit 32GB $16
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