Average Bench: 65.9% (707th of 1058)

Based on 9,435 user benchmarks.  Model: ADATA SU635

Above average average bench

The Adata SU635 240GB averaged 34.0% 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 132MB/s
Avg. 4K Random Read Speed 24.5MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Adata SU635 240GB is 61.4%. This is a particularly wide range which indicates that the Adata SU635 240GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 194MB/s
Avg. 4K-64Thread Read Speed 133MB/s

Average Bench

(Based on 9,435 samples)
Min Avg Max
333 Read 420 504
25.7 Write 312 441
14.7 Mixed 267 389
23.9 SusWrite 194 390
66.6% 298 MB/s
Min Avg Max
12.3 4K Read 24.5 40.8
7.29 4K Write 61.1 103
0.3 4K Mixed 25.1 41.1
102% 36.9 MB/s
Min Avg Max
64.9 DQ Read 133 191
12 DQ Write 170 306
0.4 DQ Mixed 132 222
105% 145 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
107GB free (System drive)
Firmware: V8X01c87
SusWrite @10s intervals: 366 360 204 227 235 214 MB/s
Read 441
Write 384
Mixed 353
SusWrite 268
81% 361 MB/s
4K Read 23.2
4K Write 98.9
4K Mixed 34.2
131% 52.1 MB/s
DQ Read 151
DQ Write 220
DQ Mixed 190
142% 187 MB/s
125GB free (System drive)
Firmware: V8X14c18
SusWrite @10s intervals: 125 165 187 168 164 127 MB/s
Read 433
Write 381
Mixed 352
SusWrite 156
74% 330 MB/s
4K Read 30.1
4K Write 95.3
4K Mixed 41.4
149% 55.6 MB/s
DQ Read 174
DQ Write 208
DQ Mixed 179
138% 187 MB/s
9,435 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,501,884 SSDs tested.


AmazonUS $301 min
EbayUS $354 mins
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Typical SU635 240GB Builds (Compare 64,224 builds) See popular component choices, score breakdowns and rankings.
Gaming 47%
Desktop 81%
Aircraft carrier
Workstation 44%
Speed boat

Motherboard: Gigabyte B450M DS3H - $62

EDIT WITH CUSTOM PC BUILDER Value: 71% - Very good Total price: $565

Popular SU635 240GB 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) August 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.

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6 months ago.

My first SSD. 24.99 on amazon, no complaints

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 3070 $500Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $394Nvidia RTX 3080 $700Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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