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KingstonSA400S37/240G
IntelSSDSC2KW512G8
▲ 54657 ▼

Controller: Phison PS3111-S11. Flash Memory: Toshiba 15nm TLC. Release date: Q1 2017.

VS
▲ 5129 ▼

Release date ≈ Q2 2017.

Effective Speed 
+63%
Real World Speed
Performance profile from 436,322 user samples
Benchmark your SSD here
424,288 User Benchmarks
Best Bench: 100% 181GB free (System drive)
Worst Bench: 33% 119GB free (System drive)
Poor: 33% Great: 100%
SPEED RANK: 736th / 1074
12,034 User Benchmarks
Best Bench: 128% 477GB free
Worst Bench: 76% 253GB free
Poor: 76% Great: 128%
SPEED RANK: 227th / 1074
Effective Speed
Effective SSD Speed 		65.8 % 107 % Much faster effective speed.
+63%
Average Score 
+62%
Read
Avg. Sequential Read Speed 		414 MB/s 473 MB/s Faster read speed.
+14%
Write
Avg. Sequential Write Speed 		318 MB/s 424 MB/s Much faster write speed.
+33%
4K Read
Avg. 4K Random Read Speed 		26.7 MB/s 39.4 MB/s Much faster random read.
+48%
4K Write
Avg. 4K Random Write Speed 		56.9 MB/s 81.1 MB/s Much faster random write.
+43%
Mixed
Avg. Sequential Mixed IO Speed 		260 MB/s 403 MB/s Much faster mixed IO speed.
+55%
4K Mixed
Avg. 4K Random Mixed IO Speed 		22.4 MB/s 51.3 MB/s Hugely faster random mixed IO.
+129%
SusWrite
Avg. Sustained Write Speed 		179 MB/s 374 MB/s Hugely faster sustained write speed.
+109%
Peak Score 
+17%
Read
Peak Sequential Read Speed 		504 MB/s 516 MB/s +2%
Write
Peak Sequential Write Speed 		446 MB/s 473 MB/s Slightly faster peak write speed.
+6%
4K Read
Peak 4K Random Read Speed 		36.1 MB/s 49.3 MB/s Much faster peak random read.
+37%
4K Write
Peak 4K Random Write Speed 		106 MB/s 112 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed 		420 MB/s 452 MB/s Slightly faster peak mixed IO speed.
+8%
4K Mixed
Peak 4K Random Mixed IO Speed 		42 MB/s 66.9 MB/s Much faster peak random mixed IO.
+59%
SusWrite
Peak Sequential Sustained Write 60s Average 		432 MB/s 443 MB/s +3%
Value & Sentiment 
+1,403%
Market Share
Based on 75,945,383 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		1.13 % Insanely higher market share.
+5,550% 		0.02 %
Value
Value For Money 		21.4 % 24.7 % Better value.
+15%
User Rating
UBM User Rating 		54 % Slightly more popular.
+6% 		51 %
Price
Price (score) 		$28 Much cheaper.
+71% 		$95
Nice To Haves 
+35%
Age
Newest 		88 Months 82+ Months Slightly more recent.
+7%
DQ Read
Peak 4K-64Thread Read Speed 		288 MB/s 309 MB/s Slightly faster peak deep queue read.
+7%
DQ Write
Peak 4K-64Thread Write Speed 		349 MB/s 353 MB/s +1%
AS-SSD Total
AS-SSD Total Score 		1,076 Pts 1,150 Pts Slightly stronger server IO.
+7%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		204 MB/s 258 MB/s Faster peak deep queue mixed IO.
+26%
ADQ Read
Avg. 4K-64Thread Read Speed 		191 MB/s 287 MB/s Much faster deep queue read.
+50%
ADQ Write
Avg. 4K-64Thread Write Speed 		214 MB/s 293 MB/s Much faster deep queue write.
+37%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		92.7 MB/s 229 MB/s Hugely faster deep queue mixed IO.
+147%
Specifications 
Capacity
Capacity 		240GB 512GB
Conclusion 
Average Bench 65.8%
Average Bench 107%
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could have used some DRAM, stutters when booting. [Dec '19 ExecutableFiles]

MORE DETAILS

Five year warranty, this SDD will outlive most others (or at least it should). New technology, 64 layers of 3D NAND flash. It's too early to to do proper comparisons in terms of longevity but I'm sure it'll last me a while. This 545s 2.5 inch SSD is even faster than my Crucial MX300 M.2 SSD. I got a random read/write 4k speed of 100 MB/s + (with CrystalDisk Mark 5) that's unheard of on a SATA drive. Sure, this isn't NVMe or Optane, but that's okay, for the price ($165) I'm still pretty satisfied with this SSD. [Dec '17 morahman7vn]

MORE DETAILS

User Builds 
424,288
12,034
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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Solid State Drive Rankings (Price vs Performance) May 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]

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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.
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.

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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

 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 »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-12600K $171Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-13600K $273Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i3-12100F $80Nvidia RTX 4070 $500Samsung 870 Evo 250GB $45
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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