Average Bench: 77.3% (226th of 848)

Based on 453 user benchmarks.  Model: ADATA SP920SS

The ADATA SP920 shares the same controller (Marvel 88SS9189), and for capacities over 256GB the same NAND configuration as the excellent Crucial M550. The lower capacity SP920 drives however have fewer NAND channels than the M550. Comparing the 512GB M550 and SP920 shows that the drives have comparable performance but at the 256GB and 128GB capacities the M550 has a significantly faster sequential write speed. The 256GB SP920 does have an average effective speed and it is priced below average so overall it represents reasonably good value for money. That said, there are both faster and cheaper SSDs available in the now both heavily saturated and extremely competitive SSD market. [May '15 SSDrivePro]


Good average bench

The Adata Premier Pro SP920 256GB averaged 22.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Adata Premier Pro SP920 256GB near the top of the comparison list.


Avg. 4K Random Write Speed 74.4MB/s
Avg. 4K Random Read Speed 23.8MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Adata Premier Pro SP920 256GB is 42.7%. This is a relatively wide range which indicates that the Adata Premier Pro SP920 256GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 33.3MB/s
Avg. 4K-64Thread Read Speed 167MB/s

Average Bench

(Based on 453 samples)
Min Avg Max
339 Read 487 527
272 Write 322 345
185 Mixed 357 413
86.2% 389 MB/s
Min Avg Max
16.7 4K Read 23.8 30.4
34.3 4K Write 74.4 121
10.1 4K Mixed 20.5 33.9
102% 39.6 MB/s
Min Avg Max
20.1 DQ Read 167 347
51.3 DQ Write 190 306
10.6 DQ Mixed 33.3 65.6
65.3% 130 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
28GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
Read 510
Write 168
Mixed 251
68% 310 MB/s
4K Read 25.5
4K Write 78.6
4K Mixed 18.3
104% 40.8 MB/s
DQ Read 257
DQ Write 223
DQ Mixed 18.5
74% 166 MB/s
125GB free
Firmware: 1.12 Max speed: SATA 3.0 600 MB/s
Read 444
Write 181
Mixed 248
64% 291 MB/s
4K Read 27.1
4K Write 67.8
4K Mixed 18.1
100% 37.7 MB/s
DQ Read 294
DQ Write 241
DQ Mixed 22.5
84% 186 MB/s
238GB free
Firmware: 1.08 Max speed: SATA 3.0 600 MB/s
Read 504
Write 301
Mixed 372
87% 392 MB/s
4K Read 18
4K Write 25.8
4K Mixed 13.4
58% 19.1 MB/s
DQ Read 307
DQ Write 255
DQ Mixed 22.6
87% 195 MB/s
83GB free
Firmware: 1.09 Max speed: SATA 3.0 600 MB/s
Read 458
Write 241
Mixed 311
74% 337 MB/s
4K Read 19.6
4K Write 47.2
4K Mixed 12
70% 26.3 MB/s
DQ Read 23.4
DQ Write 53.3
DQ Mixed 11.6
16% 29.4 MB/s
77GB free
Firmware: 1.09 Max speed: SATA 3.0 600 MB/s
Read 440
Write 182
Mixed 243
63% 289 MB/s
4K Read 16.1
4K Write 39.1
4K Mixed 13.4
62% 22.9 MB/s
DQ Read 141
DQ Write 110
DQ Mixed 19.2
43% 90.3 MB/s
453 MORE »

 Market Share (See Leaders)

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


AmazonUS $89.991 month ago.
NeweggUS $99.991 month ago.
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Typical Premier Pro SP920 256GB Builds (Compare 885 builds) See popular component choices, score breakdowns and rankings.
Gaming 58%
Desktop 57%
Workstation 35%
Jet ski

Motherboard: Asrock B85M Pro4 - $72

EDIT WITH CUSTOM PC BUILDER Value: 75% - Very good Total price: $677

Popular Premier Pro SP920 256GB 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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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: Marvell 88SS9189. Flash Memory: Micron 20nm MLC.

The superb SSD for high-definition media...

Added 23 months ago.

Above average

23 months ago.

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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.

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