Average Bench: 66.1% (711th of 1058)

Based on 10 user benchmarks.  Model: SSD256GBS420
Poor: 57%Average: 66.1% Great: 71%

Popular builds with this SSD

Above average average bench

The SSD256GBS420 256GB averaged 33.9% 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 Write Speed 283MB/s
Avg. 4K Random Write Speed 62.1MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the SSD256GBS420 256GB is just 13.9%. This is a relatively narrow range which indicates that the SSD256GBS420 256GB performs reasonably consistently under varying real world conditions.


Avg. 4K Random Mixed IO Speed 13MB/s
Avg. 4K-64Thread Mixed IO Speed 39.9MB/s

Average Bench

(Based on 10 samples)
Min Avg Max
289 Read 355 396
276 Write 316 353
110 Mixed 280 309
307 SusWrite 327 336
71.9% 319 MB/s
Min Avg Max
12.8 4K Read 17.4 26.2
35.4 4K Write 62.1 70.5
1 4K Mixed 13 17.9
75.8% 30.8 MB/s
Min Avg Max
127 DQ Read 157 170
158 DQ Write 283 311
25.8 DQ Mixed 39.9 45
81.3% 160 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
183GB free (System drive)
Firmware: T0910A0
SusWrite @10s intervals: 331 305 339 326 343 325 MB/s
Read 327
Write 299
Mixed 305
SusWrite 328
71% 315 MB/s
4K Read 26.2
4K Write 68.5
4K Mixed 15.9
96% 36.9 MB/s
DQ Read 164
DQ Write 290
DQ Mixed 38.7
83% 164 MB/s
180GB free (System drive)
Firmware: T0910A0
SusWrite @10s intervals: 320 349 330 346 323 347 MB/s
Read 391
Write 308
Mixed 110
SusWrite 336
64% 286 MB/s
4K Read 25.5
4K Write 65.2
4K Mixed 1
74% 30.6 MB/s
DQ Read 157
DQ Write 293
DQ Mixed 25.8
76% 159 MB/s
135GB free (System drive)
Firmware: S1127B0
SusWrite @10s intervals: 222 94 38 39 24 16 MB/s
Read 376
Write 320
Mixed 302
SusWrite 71.9
60% 268 MB/s
4K Read 16.4
4K Write 38
4K Mixed 14.4
63% 22.9 MB/s
DQ Read 154
DQ Write 158
DQ Mixed 45.6
65% 119 MB/s

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,303,223 SSDs tested.

Typical SSD256GBS420 256GB Builds (Compare 377 builds) See popular component choices, score breakdowns and rankings.
Gaming 4%
Tree trunk
Desktop 36%
Jet ski
Workstation 4%
Tree trunk

System: AMI Intel


Popular SSD256GBS420 256GB systems:

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.


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 $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $394Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk 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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