Average Bench: 81.8% (442nd of 1058)

Based on 2,917 user benchmarks.  Model: INTEL SSDSCKKF256G8 SATA 256GB

Very good average bench

The Intel SSDSCKKF256G8 SATA 256GB averaged just 18.1% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Intel SSDSCKKF256G8 SATA 256GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 192MB/s
Avg. 4K Random Mixed IO Speed 37.7MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Intel SSDSCKKF256G8 SATA 256GB is 50.4%. This is a relatively wide range which indicates that the Intel SSDSCKKF256G8 SATA 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 214MB/s
Avg. Sequential Mixed IO Speed 305MB/s

Average Bench

(Based on 2,917 samples)
Min Avg Max
336 Read 443 507
156 Write 319 448
152 Mixed 305 439
105 SusWrite 214 271
71.5% 320 MB/s
Min Avg Max
13.1 4K Read 29.3 44.4
28 4K Write 64.2 96.6
17.6 4K Mixed 37.7 57.4
127% 43.7 MB/s
Min Avg Max
170 DQ Read 282 307
96.7 DQ Write 243 321
105 DQ Mixed 192 244
163% 239 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
116GB free (System drive)
Firmware: LHFD05N
SusWrite @10s intervals: 243 260 268 264 268 265 MB/s
Read 468
Write 275
Mixed 278
SusWrite 261
72% 321 MB/s
4K Read 26.3
4K Write 77.5
4K Mixed 39.2
131% 47.7 MB/s
DQ Read 301
DQ Write 269
DQ Mixed 201
174% 257 MB/s
106GB free (System drive)
Firmware: LHFD04N
SusWrite @10s intervals: 237 166 216 192 211 185 MB/s
Read 433
Write 348
Mixed 263
SusWrite 201
70% 311 MB/s
4K Read 24.6
4K Write 47.9
4K Mixed 32.9
105% 35.1 MB/s
DQ Read 306
DQ Write 282
DQ Mixed 200
176% 262 MB/s
2,917 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,245,910 SSDs tested.

Typical SSDSCKKF256G8 SATA 256GB Builds (Compare 4,499 builds) See popular component choices, score breakdowns and rankings.
Gaming 11%
Tree trunk
Desktop 71%
Workstation 11%
Tree trunk

System: Dell G5 5587


Popular SSDSCKKF256G8 SATA 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 $380Nvidia 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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