Kingston SKC400S37/512G

SSDNow KC400 512GB

SSDNow KC400 512GB
BENCHMARKS (2,804)
MKT (0%)
BUILDS
(0)
BUY • $180

Effective Speed -15%Effective Speed -15%Average Score -18%Read -6%, Write -2%, 4K Read -42%, 4K Write -20%, Mixed -23%, 4K Mixed -44%, SusWrite 13%Peak Score -15%Read 0%, Write 2%, 4K Read -42%, 4K Write -14%, Mixed -30%, 4K Mixed -45%, SusWrite 24%Value & Sentiment -459%User Rating -14%, Market Share -1,678%, Price -92%, Value -54%Nice To Haves -92%DQ Read -6%, DQ Write 4%, DQ Mixed -388%, ADQ Read -12%, ADQ Write -4%, ADQ Mixed -322%, Age -4%, AS-SSD Total -5%

Average Bench: 85.8% (392^nd of 1072)

Based on 2,804 user benchmarks. Models: KINGSTON SKC400S37512G, KINGSTON SKC400S37A512G, KINGSTON SKC400S3751, KINGSTON SKC400S37512G, KINGSTON KINGSTON SKC400S, KINGSTON SKC400S

Poor: 54%Average: 85.8% Great: 108%

Popular builds with this SSD

Very good average bench

The Kingston SSDNow KC400 512GB averaged just 14.2% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Kingston SSDNow KC400 512GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 279MB/s

Avg. 4K Random Mixed IO Speed 31.3MB/s

See where your SSD ranks →

Below average consistency

The range of scores (95th - 5th percentile) for the Kingston SSDNow KC400 512GB is 54.2%. This is a relatively wide range which indicates that the Kingston SSDNow KC400 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 291MB/s

Avg. Sustained Write Speed 334MB/s

Average Bench

(Based on 2,804 samples)

Rank 39285.8%

Min	Avg	Max
211	Read 433	507
133	Write 398	493
216	Mixed 291	326
130	SusWrite 334	480
81.8% 364 MB/s

Min	Avg	Max
13.2	4K Read 24.1	30.2
30.6	4K Write 72.9	107
14.5	4K Mixed 31.3	40.2
115% 42.8 MB/s

Min	Avg	Max
97.7	DQ Read 292	346
59.2	DQ Write 279	371
29.3	DQ Mixed 61.6	67.9
108% 211 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

The fastest SSD (mainstream) averages a speed of 100%

LTU-User, 13 days ago.

439GB free (System drive)

Firmware: SAFM001A

SusWrite @10s intervals: 455 465 482 483 486 485 MB/s

107% Outstanding

Write 486

Mixed 324

SusWrite 476

101% 449 MB/s

4K Read 29.1

4K Write 85.2

4K Mixed 38.1

138% 50.8 MB/s

DQ Read 348

DQ Write 344

DQ Mixed 67.7

127% 253 MB/s

NOR-User, 3 days ago.

58GB free

Firmware: SAFM001B

SusWrite @10s intervals: 422 472 5.8 461 218 126 MB/s

90.8% Outstanding

Write 474

Mixed 324

SusWrite 284

89% 395 MB/s

4K Read 26.7

4K Write 79.5

4K Mixed 34.5

127% 46.9 MB/s

DQ Read 329

DQ Write 322

DQ Mixed 65.3

120% 239 MB/s

TWN-User, 17 days ago.

444GB free (System drive)

Firmware: SAFM001B

SusWrite @10s intervals: 296 418 406 440 455 462 MB/s

89.2% Excellent

Write 442

Mixed 302

SusWrite 413

91% 403 MB/s

4K Read 26.7

4K Write 59.5

4K Mixed 25.4

104% 37.2 MB/s

DQ Read 311

DQ Write 326

DQ Mixed 66.8

120% 235 MB/s

RUS-User, 1 day ago.

337GB free (System drive)

Firmware: SAFM001B

SusWrite @10s intervals: 333 394 407 436 393 445 MB/s

79.8% Very good

Write 406

Mixed 293

SusWrite 401

86% 385 MB/s

4K Read 15.1

4K Write 46.8

4K Mixed 20.6

74% 27.5 MB/s

DQ Read 337

DQ Write 339

DQ Mixed 67.5

125% 248 MB/s

GEO-User, 7 days ago.

417GB free (System drive)

Firmware: SAFM001B

SusWrite @10s intervals: 318 307 296 267 283 301 MB/s

73.3% Very good

Write 373

Mixed 291

SusWrite 295

77% 342 MB/s

4K Read 20

4K Write 47.8

4K Mixed 23

85% 30.3 MB/s

DQ Read 314

DQ Write 266

DQ Mixed 67.5

111% 216 MB/s

ESP-User, 13 days ago.

69GB free (System drive)

Firmware: SAFM001B

SusWrite @10s intervals: 281 207 213 169 208 200 MB/s

70% Very good

Write 455

Mixed 310

SusWrite 213

68% 297 MB/s

4K Read 28.7

4K Write 78.4

4K Mixed 28.4

121% 45.2 MB/s

DQ Read 307

DQ Write 234

DQ Mixed 18.9

82% 187 MB/s

2,804 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,726,586 SSDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU

GPU

SSD

HDD

RAM

MBD

Typical SSDNow KC400 512GB Builds (Compare 5,967 builds) See popular component choices, score breakdowns and rankings

Gaming 17%

Surfboard

Desktop 75%

Battleship

Workstation 15%

Surfboard

System: HP Z440 Workstation

CPU
Xeon E5-1620 v3IntelBench 72%, 10,197 samples	1,240x
Xeon E5-1650 v4IntelBench 83%, 3,842 samples	1,036x
Xeon E5-1650 v3IntelBench 77%, 7,962 samples	861x

GPU
Quadro K2200Nvidia $440Bench 16%, 13,860 samples	740x
Quadro M4000NvidiaBench 32%, 9,043 samples	376x
Quadro K4200Nvidia $820Bench 21%, 7,330 samples	223x

SSD
SSDNow KC400 512GBKingston $180Bench 86%, 2,804 samples	1x

RAM
M393A1G40DB0-CPB 2x8GBSamsungBench 60%, 1,030 samples	184x
M393A1G40DB0-CPB 4x8GBSamsungBench 93%, 970 samples	177x
M393A2G40DB0-CPB 2x16GBSamsungBench 59%, 1,132 samples	157x

EDIT WITH CUSTOM PC BUILDER

Value: 10% - Terrible

Total price: $620

Popular SSDNow KC400 512GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

UserBenchmark of the month

Gaming

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ProGaming

CPU

GPU

SSD

HDD

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USB

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) April 2024 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.

1072 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

Storage Devices FAQ

What is sustained sequential write speed?

What’s the difference between SLC, MLC and TLC?

What is 3D XPoint and how fast is it?

What’s the difference between SATA, PCIe and NVMe?

What’s the difference between NAND and V-NAND?

What is sequential write speed?

What is sequential read speed?

What is incompressible data?

What is queue depth?

Solid State Drives

What is the SSD value for money rating?

What is 4K 64 thread write speed?

Can CPU power saving states (C1,C2,C3) impact SSD speed?

What is the effective SSD speed index?

How is the AS SSD write score calculated?

How is the AS SSD read score calculated?

How is the AS SSD total score calculated?

ALL FAQs »

CPU	GPU	SSD
Intel Core i5-13600K $273	Nvidia RTX 4060 $295	Crucial MX500 250GB $40
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184	Nvidia RTX 4070 $539	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

Kingston SKC400S37/512G

SSDNow KC400 512GB

Average Bench: 85.8% (392^nd of 1072)

Popular builds with this SSD

Very good average bench

Strengths

Below average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

Prices

CHOOSE A COMPONENT:

System: HP Z440 Workstation

Popular SSDNow KC400 512GB systems:

UserBenchmark of the month

How it works

Group Test Results

Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

Kingston SKC400S37/512G

SSDNow KC400 512GB

Average Bench: 85.8% (392nd of 1072)

Popular builds with this SSD

Very good average bench

Strengths

Below average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

Prices

CHOOSE A COMPONENT:

System: HP Z440 Workstation

Popular SSDNow KC400 512GB systems:

UserBenchmark of the month

How it works

Group Test Results

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Speed Comparisons

Frequently Asked Questions

Best User Rated

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Average Bench: 85.8% (392^nd of 1072)