Average Bench: 77.5% (222nd of 848)

Based on 421 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 22.4% 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 74.6MB/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 43.6%. 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 33.7MB/s
Avg. 4K-64Thread Read Speed 169MB/s

Average Bench

(Based on 421 samples)
Min Avg Max
339 Read 486 527
273 Write 323 345
185 Mixed 357 413
86.2% 389 MB/s
Min Avg Max
16.7 4K Read 23.8 30.3
34.4 4K Write 74.6 121
10.1 4K Mixed 20.7 34.1
102% 39.7 MB/s
Min Avg Max
20 DQ Read 169 350
49.9 DQ Write 191 306
10.6 DQ Mixed 33.7 65.8
65.9% 131 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
143GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
Read 523
Write 343
Mixed 411
94% 426 MB/s
4K Read 28.1
4K Write 87.6
4K Mixed 29.9
127% 48.5 MB/s
DQ Read 284
DQ Write 281
DQ Mixed 50.2
102% 205 MB/s
33GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
Read 531
Write 345
Mixed 375
92% 417 MB/s
4K Read 30.4
4K Write 114
4K Mixed 11.6
122% 52.2 MB/s
DQ Read 128
DQ Write 198
DQ Mixed 20.2
55% 115 MB/s
198GB free
Firmware: 1.12 Max speed: SATA 3.0 600 MB/s
Read 502
Write 347
Mixed 403
93% 417 MB/s
4K Read 20.1
4K Write 61.5
4K Mixed 16.4
84% 32.7 MB/s
DQ Read 108
DQ Write 164
DQ Mixed 21.6
48% 97.8 MB/s
421 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,386,282 SSDs tested.


AmazonUS $89.9924 days ago.
NeweggUS $99.9927 days ago.
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Typical Premier Pro SP920 256GB Builds (Compare 820 builds) See popular component choices, score breakdowns and rankings.
Gaming 58%
Desktop 58%
Workstation 36%
Jet ski

Motherboard: Asrock B85M Pro4 - $80

EDIT WITH CUSTOM PC BUILDER Value: 75% - Very good Total price: $685

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) 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: Marvell 88SS9189. Flash Memory: Micron 20nm MLC.

The superb SSD for high-definition media...

Added 22 months ago.

Above average

22 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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