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KingstonSA400S37/480G
IntelSSDPEKNW512G8X1
▲ 51250 ▼

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

VS
▲ 5271 ▼

Release date ≈ Q3 2018.

Effective Speed 
+110%
Real World Speed
Performance profile from 399,762 user samples
Benchmark your SSD here
237,487 User Benchmarks
Best Bench: 102% 343GB free (System drive)
Worst Bench: 39% 105GB free (System drive)
Poor: 39% Great: 102%
SPEED RANK: 588th / 1072
162,275 User Benchmarks
Best Bench: 209% 477GB free
Worst Bench: 94% 191GB free (System drive)
Poor: 94% Great: 209%
SPEED RANK: 147th / 1072
Effective Speed
Effective SSD Speed 		74.3 % 156 % Hugely faster effective speed.
+110%
Average Score 
+125%
Read
Avg. Sequential Read Speed 		399 MB/s 1253 MB/s Hugely faster read speed.
+214%
Write
Avg. Sequential Write Speed 		302 MB/s 845 MB/s Hugely faster write speed.
+180%
4K Read
Avg. 4K Random Read Speed 		26.8 MB/s 48.9 MB/s Hugely faster random read.
+82%
4K Write
Avg. 4K Random Write Speed 		64.1 MB/s 120 MB/s Hugely faster random write.
+87%
Mixed
Avg. Sequential Mixed IO Speed 		287 MB/s 780 MB/s Hugely faster mixed IO speed.
+172%
4K Mixed
Avg. 4K Random Mixed IO Speed 		26.9 MB/s 60.6 MB/s Hugely faster random mixed IO.
+125%
SusWrite
Avg. Sustained Write Speed 		266 MB/s 303 MB/s Faster sustained write speed.
+14%
Peak Score 
+104%
Read
Peak Sequential Read Speed 		503 MB/s 1419 MB/s Hugely faster peak read speed.
+182%
Write
Peak Sequential Write Speed 		451 MB/s 935 MB/s Hugely faster peak write speed.
+107%
4K Read
Peak 4K Random Read Speed 		36 MB/s 60.7 MB/s Much faster peak random read.
+69%
4K Write
Peak 4K Random Write Speed 		109 MB/s 196 MB/s Much faster peak random write.
+80%
Mixed
Peak Sequential Mixed IO Speed 		410 MB/s 876 MB/s Hugely faster peak mixed IO speed.
+114%
4K Mixed
Peak 4K Random Mixed IO Speed 		41.8 MB/s 80.7 MB/s Hugely faster peak random mixed IO.
+93%
SusWrite
Peak Sequential Sustained Write 60s Average 		460 MB/s 834 MB/s Hugely faster peak sustained write speed.
+81%
Value & Sentiment 
+20%
Market Share
Based on 75,814,710 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.95 % Hugely higher market share.
+102% 		0.47 %
Value
Value For Money 		32.5 % 50.6 % Much better value.
+56%
User Rating
UBM User Rating 		51 % 52 % +2%
Price
Price (score) 		$38 Much cheaper.
+37% 		$60
Nice To Haves 
+83%
Age
Newest 		85+ Months 68+ Months More recent.
+20%
DQ Read
Peak 4K-64Thread Read Speed 		282 MB/s 336 MB/s Faster peak deep queue read.
+19%
DQ Write
Peak 4K-64Thread Write Speed 		355 MB/s 850 MB/s Hugely faster peak deep queue write.
+139%
AS-SSD Total
AS-SSD Total Score 		1,077 Pts 1,954 Pts Hugely stronger server IO.
+81%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		216 MB/s 343 MB/s Much faster peak deep queue mixed IO.
+59%
ADQ Read
Avg. 4K-64Thread Read Speed 		180 MB/s 326 MB/s Hugely faster deep queue read.
+81%
ADQ Write
Avg. 4K-64Thread Write Speed 		234 MB/s 609 MB/s Hugely faster deep queue write.
+160%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		113 MB/s 232 MB/s Hugely faster deep queue mixed IO.
+105%
Specifications 
Capacity
Capacity 		480GB 512GB
Conclusion 
Average Bench 74.3%
Average Bench 156%
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needs DRAM as booting causes stutters on this one  [Dec '19 ExecutableFiles]

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Works find on both laptop and desktop. Cheap, but have decent performance.1tb x 1tb can give you a top line experience.  [Nov '21 Gamejang]

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User Builds 
237,487
162,275
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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CPU GPU SSD HDD RAM MBD
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.

UserBenchmark of the month

Gaming Desktop ProGaming

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 i5-13600K $254Nvidia RTX 4060 $290Crucial MX500 250GB $39
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $163Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $31Corsair Vengeance LPX DDR4 3000 C15 2x8GB $37SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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