Average Bench: 64% (420th of 848)

Based on 1,166 user benchmarks.  Models: ADATA SP550, ADATA SP 550, ADAT SP550

Above average average bench

The Adata Premier SP550 480GB averaged 36.0% 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 25.1MB/s
Avg. Sequential Read Speed 467MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata Premier SP550 480GB is 30%. This is a relatively narrow range which indicates that the Adata Premier SP550 480GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 30.1MB/s
Avg. 4K-64Thread Write Speed 116MB/s

Average Bench

(Based on 1,166 samples)
Min Avg Max
357 Read 467 494
197 Write 236 259
182 Mixed 252 270
70% 318 MB/s
Min Avg Max
17.6 4K Read 25.1 31.9
20.5 4K Write 44.6 66.1
9.44 4K Mixed 16.9 24.5
83.4% 28.9 MB/s
Min Avg Max
22 DQ Read 160 308
34.9 DQ Write 116 179
9.39 DQ Mixed 30.1 48
51.8% 102 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
56GB free
Firmware: O1203AB Max speed: SATA 3.0 600 MB/s
Read 495
Write 238
Mixed 265
73% 332 MB/s
4K Read 32.3
4K Write 63.7
4K Mixed 14.8
102% 37 MB/s
DQ Read 33.5
DQ Write 66.4
DQ Mixed 38.6
33% 46.2 MB/s
206GB free
Firmware: O0803B5a Max speed: SATA 3.0 600 MB/s
Read 470
Write 260
Mixed 269
73% 333 MB/s
4K Read 29.4
4K Write 63.2
4K Mixed 14.1
96% 35.6 MB/s
DQ Read 30.6
DQ Write 73
DQ Mixed 14
22% 39.2 MB/s
277GB free
Firmware: P0330AA Max speed: SATA 3.0 600 MB/s
Read 483
Write 242
Mixed 260
72% 329 MB/s
4K Read 28.6
4K Write 49.3
4K Mixed 20
95% 32.6 MB/s
DQ Read 29.7
DQ Write 51.6
DQ Mixed 13.1
18% 31.5 MB/s
186GB free
Firmware: O0730A Max speed: SATA 3.0 600 MB/s
Read 483
Write 250
Mixed 257
72% 330 MB/s
4K Read 23.5
4K Write 39.6
4K Mixed 11.6
72% 24.9 MB/s
DQ Read 26.8
DQ Write 43.6
DQ Mixed 11.7
16% 27.4 MB/s
1,166 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,373,966 SSDs tested.


NeweggUS $149.992 hrs ago.
AmazonUS $156.9322 mins ago.
EbayUS $156.934 mins ago.
OutletPCUS $157.8323 hrs ago.
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Typical Premier SP550 480GB Builds (Compare 1,391 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 79%
Workstation 63%

Motherboard: Gigabyte GA-Z170X-Gaming 5 - $161

EDIT WITH CUSTOM PC BUILDER Value: 88% - Excellent Total price: $1,091

Popular Premier SP550 480GB compatible motherboards:

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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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Solid State Drive Rankings (Price vs Performance) March 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.

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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

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Seagate Barracuda 7200.14 1TB $50HyperX Fury DDR4 2133 C14 2x8GB $119SanDisk Ultra Fit 32GB $9
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