Average Bench: 89.5% (303rd of 1037)

Based on 3,021 user benchmarks.  Model: INTEL SSDSCKKW256G8

Very good average bench

The Intel SSDSCKKW256G8 256GB averaged just 10.4% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Intel SSDSCKKW256G8 256GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 197MB/s
Avg. 4K Random Mixed IO Speed 43.5MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Intel SSDSCKKW256G8 256GB is 53.1%. This is a relatively wide range which indicates that the Intel SSDSCKKW256G8 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 230MB/s
Avg. Sequential Mixed IO Speed 349MB/s

Average Bench

(Based on 3,021 samples)
Min Avg Max
332 Read 458 511
242 Write 366 461
212 Mixed 349 449
126 SusWrite 230 280
78.5% 351 MB/s
Min Avg Max
16.7 4K Read 33.7 48.1
37.5 4K Write 72.7 108
22.8 4K Mixed 43.5 63.4
145% 50 MB/s
Min Avg Max
148 DQ Read 280 308
100 DQ Write 253 335
123 DQ Mixed 197 249
167% 244 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
76GB free (System drive)
Firmware: LHF002C
SusWrite @10s intervals: 285 189 202 158 133 121 MB/s
Read 472
Write 373
Mixed 416
SusWrite 182
81% 361 MB/s
4K Read 43.4
4K Write 98.4
4K Mixed 59
194% 66.9 MB/s
DQ Read 309
DQ Write 336
DQ Mixed 230
199% 292 MB/s
49GB free (System drive)
Firmware: LHF002C
SusWrite @10s intervals: 261 264 268 200 206 140 MB/s
Read 423
Write 418
Mixed 346
SusWrite 223
79% 353 MB/s
4K Read 26.4
4K Write 89.4
4K Mixed 45.6
146% 53.8 MB/s
DQ Read 306
DQ Write 332
DQ Mixed 205
186% 281 MB/s
160GB free (System drive)
Firmware: LHF002C
SusWrite @10s intervals: 255 258 259 262 264 264 MB/s
Read 488
Write 264
Mixed 293
SusWrite 260
73% 326 MB/s
4K Read 27.3
4K Write 51.8
4K Mixed 34.2
113% 37.8 MB/s
DQ Read 255
DQ Write 247
DQ Mixed 197
163% 233 MB/s
3,021 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,610,326 SSDs tested.

Typical SSDSCKKW256G8 256GB Builds (Compare 174 builds) See popular component choices, score breakdowns and rankings.
Gaming 8%
Tree trunk
Desktop 64%
Workstation 7%
Tree trunk

System: Asus VivoBook_ASUSLaptop X430FN_S430FN


Popular SSDSCKKW256G8 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.
  • - 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) September 2020 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.


1037 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 i5-9600K $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $140Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $289Nvidia RTX 2070S (Super) $505Samsung 860 Evo 250GB $43
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
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