Average Bench: 78.8% (433rd of 1009)

Based on 1,785 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 21.1% 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-64Thread Mixed IO Speed 107MB/s
Avg. 4K Random Mixed IO Speed 31.5MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Adata Premier Pro SP920 256GB is 50.6%. This is a relatively wide range which indicates that the Adata Premier Pro SP920 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 229MB/s
Avg. Sequential Mixed IO Speed 239MB/s

Average Bench

(Based on 1,785 samples)
Min Avg Max
342 Read 431 484
67.7 Write 290 347
95.6 Mixed 239 305
71.3 SusWrite 229 341
66.2% 297 MB/s
Min Avg Max
18.8 4K Read 25.1 30.7
30.3 4K Write 74.3 115
18.8 4K Mixed 31.5 42.9
118% 43.6 MB/s
Min Avg Max
28 DQ Read 280 374
56.1 DQ Write 241 320
29.4 DQ Mixed 107 210
122% 209 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
152GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 325 284 244 295 298 298 MB/s
Read 458
Write 340
Mixed 274
SusWrite 291
76% 341 MB/s
4K Read 26.4
4K Write 108
4K Mixed 34.9
142% 56.3 MB/s
DQ Read 363
DQ Write 316
DQ Mixed 211
193% 297 MB/s
134GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 311 258 279 277 276 268 MB/s
Read 433
Write 341
Mixed 299
SusWrite 278
76% 338 MB/s
4K Read 28
4K Write 91.9
4K Mixed 38.2
140% 52.7 MB/s
DQ Read 346
DQ Write 315
DQ Mixed 169
171% 277 MB/s
92GB free (System drive)
Firmware: 1.14
SusWrite @10s intervals: 268 252 244 243 236 256 MB/s
Read 480
Write 220
Mixed 194
SusWrite 250
63% 286 MB/s
4K Read 25.6
4K Write 69.2
4K Mixed 27.9
111% 40.9 MB/s
DQ Read 203
DQ Write 258
DQ Mixed 51.5
89% 171 MB/s
54GB free (System drive)
Firmware: 1.12
SusWrite @10s intervals: 297 246 226 199 173 174 MB/s
Read 449
Write 309
Mixed 240
SusWrite 219
68% 304 MB/s
4K Read 27
4K Write 64.2
4K Mixed 29.8
113% 40.3 MB/s
DQ Read 293
DQ Write 221
DQ Mixed 64.3
100% 193 MB/s
1,785 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 15,995,802 SSDs tested.


Approx. $92 @ launch in Apr '14
AmazonUS $20313 months
Send price feedback
Typical Premier Pro SP920 256GB Builds (Compare 3,097 builds) See popular component choices, score breakdowns and rankings.
Gaming 56%
Desktop 54%
Workstation 29%

Motherboard: Asrock B85M Pro4 - $150

EDIT WITH CUSTOM PC BUILDER Value: 58% - Above average Total price: $942

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.

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.
  • - 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.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) July 2019 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: Marvell 88SS9189. Flash Memory: Micron 20nm MLC

The superb SSD for high-definition media...

Added 4 years ago.

Above average

4 years ago.

1009 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.
AMD Ryzen 5 3600 $199Nvidia GTX 1070 $391Samsung 850 Evo 250GB $104
AMD Ryzen 7 2700X $251Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
Intel Core i9-9900K $470Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $97
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $73SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $728SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $41Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback