Average Bench: 86.2% (353rd of 1040)

Based on 505 user benchmarks.  Models: KINGSTON SKC400S371T, KINGSTON KINGSTON SKC400S, KINGSTON SKC400S371T, KINGSTON SKC400S

Very good average bench

The Kingston SSDNow KC400 1TB averaged just 13.7% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Kingston SSDNow KC400 1TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 272MB/s
Avg. 4K Random Write Speed 71.5MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Kingston SSDNow KC400 1TB is 48.5%. This is a relatively wide range which indicates that the Kingston SSDNow KC400 1TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 313MB/s
Avg. 4K-64Thread Mixed IO Speed 53.1MB/s
ADVERTISEMENT

Average Bench

(Based on 505 samples)
Min Avg Max
334 Read 460 519
193 Write 407 488
208 Mixed 313 419
177 SusWrite 355 477
86.2% 384 MB/s
Min Avg Max
15.3 4K Read 24.5 30.6
31.5 4K Write 71.5 112
9.07 4K Mixed 28.1 40.8
111% 41.4 MB/s
Min Avg Max
25.2 DQ Read 272 345
62.9 DQ Write 272 367
9.7 DQ Mixed 53.1 67.9
100% 199 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
879GB free
Firmware: SAFM001B
SusWrite @10s intervals: 469 473 469 477 474 472 MB/s
Read 502
Write 485
Mixed 324
SusWrite 472
100% 446 MB/s
4K Read 28.5
4K Write 86.3
4K Mixed 37
136% 50.6 MB/s
DQ Read 342
DQ Write 343
DQ Mixed 66.6
126% 251 MB/s
817GB free (System drive)
Firmware: SAFM001B
SusWrite @10s intervals: 404 433 448 435 452 450 MB/s
Read 514
Write 460
Mixed 306
SusWrite 437
96% 429 MB/s
4K Read 30.5
4K Write 91.6
4K Mixed 38
143% 53.4 MB/s
DQ Read 309
DQ Write 342
DQ Mixed 66.9
122% 239 MB/s
739GB free (System drive)
Firmware: SAFM00.W
SusWrite @10s intervals: 440 446 456 460 466 469 MB/s
Read 499
Write 473
Mixed 303
SusWrite 456
97% 433 MB/s
4K Read 28.8
4K Write 90.8
4K Mixed 38.1
140% 52.6 MB/s
DQ Read 328
DQ Write 319
DQ Mixed 66.6
121% 238 MB/s
390GB free
Firmware: SAFM001B
SusWrite @10s intervals: 450 466 475 473 471 447 MB/s
Read 505
Write 472
Mixed 330
SusWrite 464
100% 443 MB/s
4K Read 28.4
4K Write 81
4K Mixed 37
133% 48.8 MB/s
DQ Read 337
DQ Write 361
DQ Mixed 68.6
129% 255 MB/s
633GB free (System drive)
Firmware: SAFM001A
SusWrite @10s intervals: 420 456 457 475 475 476 MB/s
Read 501
Write 474
Mixed 323
SusWrite 460
99% 440 MB/s
4K Read 28
4K Write 72.9
4K Mixed 35.6
127% 45.5 MB/s
DQ Read 343
DQ Write 318
DQ Mixed 68.3
123% 243 MB/s
922GB free (System drive)
Firmware: SAFM001B
SusWrite @10s intervals: 391 395 399 415 425 422 MB/s
Read 427
Write 414
Mixed 299
SusWrite 408
87% 387 MB/s
4K Read 21.6
4K Write 87.8
4K Mixed 25.4
112% 44.9 MB/s
DQ Read 191
DQ Write 326
DQ Mixed 63.2
103% 194 MB/s
204GB free
Firmware: SAFM001A
SusWrite @10s intervals: 358 367 365 257 79 251 MB/s
Read 374
Write 372
Mixed 278
SusWrite 279
73% 326 MB/s
4K Read 28.8
4K Write 83.5
4K Mixed 37.2
136% 49.8 MB/s
DQ Read 245
DQ Write 194
DQ Mixed 65.9
91% 168 MB/s
466GB free
Firmware: SAFM001B
SusWrite @10s intervals: 359 362 360 363 362 363 MB/s
Read 474
Write 430
Mixed 320
SusWrite 362
89% 396 MB/s
4K Read 22.3
4K Write 45.1
4K Mixed 26.9
92% 31.4 MB/s
DQ Read 228
DQ Write 192
DQ Mixed 50.6
82% 157 MB/s
505 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 33,128,534 SSDs tested.

 Prices

AmazonUS $38019 months
Send price feedback
Typical SSDNow KC400 1TB Builds (Compare 637 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 8%
Tree trunk
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 7%
Tree trunk

Motherboard: Gigabyte GA-H81M-D2V - $84

EDIT WITH CUSTOM PC BUILDER Value: 34% - Below average Total price: $669

Popular SSDNow KC400 1TB compatible motherboards:

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) October 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]

ADVERTISEMENT

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

1040 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 $185Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $46
Intel Core i5-9400F $142Nvidia RTX 3080 $700Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $170Samsung 860 Evo 250GB $49
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $548SanDisk Extreme 16GB $28
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback