Average Bench: 61.9% (474th of 859)

Based on 182 user benchmarks.  Model: ADATA SP550

Above average average bench

The Adata Premier SP550 960GB averaged 38.1% 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 24.9%. 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 31.4MB/s
Avg. 4K-64Thread Write Speed 120MB/s

Average Bench

(Based on 182 samples)
Min Avg Max
352 Read 423 442
201 Write 241 262
189 Mixed 238 255
66.3% 301 MB/s
Min Avg Max
15.8 4K Read 23 27.9
23.6 4K Write 46.4 64.7
9.06 4K Mixed 16.4 21.9
80.4% 28.6 MB/s
Min Avg Max
20.4 DQ Read 165 300
35 DQ Write 120 177
8.39 DQ Mixed 31.4 45.5
53.5% 105 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
25GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 436
Write 242
Mixed 244
68% 307 MB/s
4K Read 23.5
4K Write 44.4
4K Mixed 12.9
76% 27 MB/s
DQ Read 267
DQ Write 138
DQ Mixed 39.7
73% 148 MB/s
312GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 436
Write 263
Mixed 248
70% 316 MB/s
4K Read 25.1
4K Write 60.6
4K Mixed 12.8
86% 32.8 MB/s
DQ Read 27.2
DQ Write 177
DQ Mixed 35.2
47% 79.8 MB/s
581GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 439
Write 245
Mixed 242
68% 309 MB/s
4K Read 25.5
4K Write 42.1
4K Mixed 18.6
85% 28.7 MB/s
DQ Read 25.3
DQ Write 110
DQ Mixed 11.8
25% 49.1 MB/s
205GB free
Firmware: O1126A Max speed: SATA 3.0 600 MB/s
Read 436
Write 238
Mixed 243
67% 306 MB/s
4K Read 23.3
4K Write 42.4
4K Mixed 17.9
81% 27.9 MB/s
DQ Read 25.3
DQ Write 145
DQ Mixed 34.1
41% 68 MB/s
182 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,837,917 SSDs tested.


AmazonUS $299.9616 mins ago.
EbayUS $310.182 mins ago.
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Typical Premier SP550 960GB Builds (Compare 519 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: 88% - Excellent Total price: $1,709

Popular Premier SP550 960GB compatible motherboards:

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Solid State Drive Rankings (Price vs Performance) September 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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859 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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Intel Core i5-7600K $220Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $150
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $724SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $152SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $56HyperX Fury DDR4 2133 C14 2x8GB $141SanDisk Extreme 16GB $20
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