Average Bench: 81.1% (431st of 1034)

Based on 513 user benchmarks.  Models: KINGSTON SKC400S37128G, KINGSTON KINGSTON SKC400S, KINGSTON SKC400S3712, KINGSTON SKC400S, KINGSTON SKC400S37128G

Very good average bench

The Kingston SSDNow KC400 128GB averaged just 18.8% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Kingston SSDNow KC400 128GB near the top of the comparison list.

Strengths

Avg. 4K Random Mixed IO Speed 31.6MB/s
Avg. 4K-64Thread Write Speed 260MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Kingston SSDNow KC400 128GB is 49.1%. This is a relatively wide range which indicates that the Kingston SSDNow KC400 128GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 258MB/s
Avg. Sequential Mixed IO Speed 264MB/s
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Average Bench

(Based on 513 samples)
Min Avg Max
205 Read 427 512
90.8 Write 319 420
130 Mixed 264 309
100 SusWrite 258 398
70.9% 317 MB/s
Min Avg Max
16.3 4K Read 25.3 31.5
34.1 4K Write 71.1 114
18.5 4K Mixed 31.6 40.7
117% 42.7 MB/s
Min Avg Max
30.6 DQ Read 304 358
76.4 DQ Write 260 361
32 DQ Mixed 60.5 67
106% 208 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
72GB free (System drive)
Firmware: SAFM00.W
SusWrite @10s intervals: 234 289 289 290 332 297 MB/s
Read 514
Write 426
Mixed 307
SusWrite 288
86% 384 MB/s
4K Read 30.9
4K Write 100
4K Mixed 39.6
151% 57 MB/s
DQ Read 352
DQ Write 373
DQ Mixed 67
132% 264 MB/s
25GB free (System drive)
Firmware: SAFM00.Y
SusWrite @10s intervals: 222 171 153 151 176 151 MB/s
Read 499
Write 161
Mixed 287
SusWrite 171
62% 279 MB/s
4K Read 28.7
4K Write 47.9
4K Mixed 34.8
113% 37.1 MB/s
DQ Read 345
DQ Write 172
DQ Mixed 66.3
100% 194 MB/s
80GB free (System drive)
Firmware: SAFM00.W
SusWrite @10s intervals: 143 189 112 270 124 MB/s
Read 401
Write 372
Mixed 282
SusWrite 173
69% 307 MB/s
4K Read 21
4K Write 43.5
4K Mixed 25.3
87% 29.9 MB/s
DQ Read 336
DQ Write 296
DQ Mixed 66.2
118% 233 MB/s
39GB free (System drive)
Firmware: SAFM00.Y
SusWrite @10s intervals: 307 212 214 204 239 252 MB/s
Read 344
Write 333
Mixed 259
SusWrite 238
66% 294 MB/s
4K Read 22.5
4K Write 43.1
4K Mixed 27.3
92% 31 MB/s
DQ Read 249
DQ Write 24.7
DQ Mixed 65.3
66% 113 MB/s
513 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,491,048 SSDs tested.

 Prices

AmazonUS $972 mins
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Typical SSDNow KC400 128GB Builds (Compare 2,374 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 3%
Tree trunk
Desktop
Desktop 62%
Destroyer
Workstation
Workstation 3%
Tree trunk

System: HP Compaq 8200 Elite SFF PC

EDIT WITH CUSTOM PC BUILDER Value: 47% - Average Total price: $172

Popular SSDNow KC400 128GB 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]

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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.

 Comments

1034 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.
CPUGPUSSD
Intel Core i5-9600K $193Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $43
Intel Core i5-9400F $143Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $290Nvidia RTX 2070S (Super) $500Samsung 860 Evo 250GB $43
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $66SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $64SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
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