Average Bench: 67.8% (681st of 1058)

Based on 3,041 user benchmarks.  Model: ADATA SU655

Above average average bench

The Adata SU655 120GB averaged 32.2% 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-64Thread Mixed IO Speed 119MB/s
Avg. 4K Random Read Speed 26MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Adata SU655 120GB is 56.3%. This is a relatively wide range which indicates that the Adata SU655 120GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 164MB/s
Avg. 4K-64Thread Read Speed 114MB/s

Average Bench

(Based on 3,041 samples)
Min Avg Max
323 Read 417 491
41.3 Write 262 443
63.3 Mixed 260 418
35.2 SusWrite 164 390
61.4% 276 MB/s
Min Avg Max
13 4K Read 26 40.5
18.8 4K Write 68.4 112
14.8 4K Mixed 29.9 46.3
114% 41.4 MB/s
Min Avg Max
45.3 DQ Read 114 194
21.7 DQ Write 165 300
21.1 DQ Mixed 119 235
95.7% 132 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
25GB free
Firmware: S190429a
SusWrite @10s intervals: 203 82 58 58 42 49 MB/s
Read 479
Write 393
Mixed 406
SusWrite 81.9
76% 340 MB/s
4K Read 33
4K Write 75.9
4K Mixed 36.3
137% 48.4 MB/s
DQ Read 221
DQ Write 214
DQ Mixed 233
171% 223 MB/s
61GB free (System drive)
Firmware: S190429a
SusWrite @10s intervals: 371 276 52 64 55 113 MB/s
Read 428
Write 198
Mixed 383
SusWrite 155
65% 291 MB/s
4K Read 25.4
4K Write 61.9
4K Mixed 28.9
108% 38.7 MB/s
DQ Read 228
DQ Write 284
DQ Mixed 237
184% 250 MB/s
3,041 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,091,854 SSDs tested.

Typical SU655 120GB Builds (Compare 13,309 builds) See popular component choices, score breakdowns and rankings.
Gaming 65%
Desktop 88%
Aircraft carrier
Workstation 55%

Motherboard: Gigabyte B365M DS3H - $75

EDIT WITH CUSTOM PC BUILDER Value: 82% - Excellent Total price: $561

Popular SU655 120GB 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
Solid State Drive Rankings (Price vs Performance) September 2021 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.


Added n/a ago.


6 months ago.

very fast ssd, good performance on windows 10 pro, have nothing to complain about.

1058 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.
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $44
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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