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IntelSSDSC2KW512G8
KingstonSA400S37/120G
▲ 5129 ▼

Release date ≈ Q2 2017.

VS
▲ 53178 ▼

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

Effective Speed 
+75%
Real World Speed
Performance profile from 178,426 user samples
Benchmark your SSD here
12,034 User Benchmarks
Best Bench: 128% 477GB free
Worst Bench: 76% 253GB free
Poor: 76% Great: 128%
SPEED RANK: 225th / 1072
166,392 User Benchmarks
Best Bench: 85% 108GB free
Worst Bench: 33% 55GB free (System drive)
Poor: 33% Great: 85%
SPEED RANK: 789th / 1072
Effective Speed
Effective SSD Speed 		107 % Much faster effective speed.
+75% 		61.3 %
Average Score 
+89%
Read
Avg. Sequential Read Speed 		473 MB/s Faster read speed.
+17% 		405 MB/s
Write
Avg. Sequential Write Speed 		424 MB/s Much faster write speed.
+71% 		248 MB/s
4K Read
Avg. 4K Random Read Speed 		39.4 MB/s Much faster random read.
+45% 		27.1 MB/s
4K Write
Avg. 4K Random Write Speed 		81.1 MB/s Much faster random write.
+33% 		61 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		403 MB/s Much faster mixed IO speed.
+74% 		232 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		51.3 MB/s Hugely faster random mixed IO.
+104% 		25.2 MB/s
SusWrite
Avg. Sustained Write Speed 		374 MB/s Hugely faster sustained write speed.
+280% 		98.5 MB/s
Peak Score 
+32%
Read
Peak Sequential Read Speed 		516 MB/s +3% 500 MB/s
Write
Peak Sequential Write Speed 		473 MB/s Faster peak write speed.
+14% 		415 MB/s
4K Read
Peak 4K Random Read Speed 		49.3 MB/s Much faster peak random read.
+31% 		37.6 MB/s
4K Write
Peak 4K Random Write Speed 		112 MB/s Faster peak random write.
+13% 		99.1 MB/s
Mixed
Peak Sequential Mixed IO Speed 		452 MB/s Faster peak mixed IO speed.
+20% 		376 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		66.9 MB/s Much faster peak random mixed IO.
+61% 		41.6 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		443 MB/s Much faster peak sustained write speed.
+79% 		248 MB/s
Value & Sentiment 
+150%
Market Share
Based on 75,912,966 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.03 % 0.22 % Hugely higher market share.
+633%
Value
Value For Money 		24.7 % Hugely better value.
+108% 		11.9 %
User Rating
UBM User Rating 		51 % 53 % +4%
Price
Price (score) 		$95 $28 Much cheaper.
+71%
Nice To Haves 
+49%
Age
Newest 		82+ Months Slightly more recent.
+6% 		87+ Months
DQ Read
Peak 4K-64Thread Read Speed 		309 MB/s Faster peak deep queue read.
+25% 		247 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		353 MB/s Slightly faster peak deep queue write.
+5% 		336 MB/s
AS-SSD Total
AS-SSD Total Score 		1,150 Pts Stronger server IO.
+16% 		993 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		258 MB/s Much faster peak deep queue mixed IO.
+39% 		186 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		287 MB/s Hugely faster deep queue read.
+90% 		151 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		293 MB/s Much faster deep queue write.
+66% 		176 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		229 MB/s Hugely faster deep queue mixed IO.
+145% 		93.3 MB/s
Specifications 
Capacity
Capacity 		512GB 120GB
Conclusion 
Average Bench 107%
Average Bench 61.3%
ADVERTISEMENT

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]

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It's cheap, the performance and capacity is cheap. [Sep '20 0306]

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User Builds 
12,034
166,392
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.

UserBenchmark of the month

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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 i5-13600K $273Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-12400F $128Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $165Nvidia RTX 4070 $542Samsung 870 Evo 250GB $29
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $39SanDisk 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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