Average Bench: 69.6% (661st of 1058)

Based on 1,843 user benchmarks.  Model: SanDisk SD9SN8W256G1014

Above average average bench

The Sandisk SD9SN8W256G1014 256GB averaged 30.4% 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 214MB/s
Avg. 4K-64Thread Read Speed 298MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Sandisk SD9SN8W256G1014 256GB is 45.6%. This is a relatively wide range which indicates that the Sandisk SD9SN8W256G1014 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 171MB/s
Avg. Sequential Mixed IO Speed 235MB/s

Average Bench

(Based on 1,843 samples)
Min Avg Max
314 Read 415 490
169 Write 307 433
132 Mixed 235 323
76.2 SusWrite 171 216
62.9% 282 MB/s
Min Avg Max
10.7 4K Read 23.5 36
24.4 4K Write 51 91.1
13.9 4K Mixed 28.6 45.1
99.4% 34.4 MB/s
Min Avg Max
133 DQ Read 298 378
109 DQ Write 233 316
108 DQ Mixed 214 276
174% 248 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
54GB free (System drive)
Firmware: X6107000
SusWrite @10s intervals: 227 209 212 211 207 208 MB/s
Read 426
Write 307
Mixed 247
SusWrite 212
66% 298 MB/s
4K Read 36.5
4K Write 91.8
4K Mixed 47.7
165% 58.7 MB/s
DQ Read 367
DQ Write 250
DQ Mixed 277
215% 298 MB/s
183GB free (System drive)
Firmware: X610
SusWrite @10s intervals: 207 190 205 200 208 216 MB/s
Read 363
Write 129
Mixed 194
SusWrite 204
49% 223 MB/s
4K Read 19.6
4K Write 58.6
4K Mixed 29.9
99% 36 MB/s
DQ Read 254
DQ Write 208
DQ Mixed 212
164% 224 MB/s
180GB free (System drive)
Firmware: X6107000
SusWrite @10s intervals: 228 200 199 201 199 197 MB/s
Read 387
Write 354
Mixed 267
SusWrite 204
68% 303 MB/s
4K Read 13.1
4K Write 40.2
4K Mixed 20.8
68% 24.7 MB/s
DQ Read 358
DQ Write 282
DQ Mixed 217
190% 286 MB/s
1,843 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,301,724 SSDs tested.

Typical SD9SN8W256G1014 256GB Builds (Compare 4,224 builds) See popular component choices, score breakdowns and rankings.
Gaming 9%
Tree trunk
Desktop 55%
Workstation 8%
Tree trunk

System: Acer Nitro AN515-42


Popular SD9SN8W256G1014 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 $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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