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KingstonSA400S37/240G
AdataASU650SS-240GT-C
▲ 53656 ▼

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

VS
▲ 52187 ▼

Release date ≈ Q3 2017.

Effective Speed 
+6%
Real World Speed
Performance profile from 471,304 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: 734th / 1072
47,016 User Benchmarks
Best Bench: 99% 160GB free
Worst Bench: 33% 65GB free (System drive)
Poor: 33% Great: 99%
SPEED RANK: 670th / 1072
Effective Speed
Effective SSD Speed 		65.8 % 70 % Slightly faster effective speed.
+6%
Average Score 
+8%
Read
Avg. Sequential Read Speed 		414 MB/s +1% 410 MB/s
Write
Avg. Sequential Write Speed 		318 MB/s +1% 314 MB/s
4K Read
Avg. 4K Random Read Speed 		26.7 MB/s Slightly faster random read.
+8% 		24.7 MB/s
4K Write
Avg. 4K Random Write Speed 		56.9 MB/s 66.1 MB/s Faster random write.
+16%
Mixed
Avg. Sequential Mixed IO Speed 		260 MB/s 272 MB/s +5%
4K Mixed
Avg. 4K Random Mixed IO Speed 		22.4 MB/s 27.7 MB/s Faster random mixed IO.
+24%
SusWrite
Avg. Sustained Write Speed 		179 MB/s 216 MB/s Faster sustained write speed.
+21%
Peak Score 
+1%
Read
Peak Sequential Read Speed 		504 MB/s +4% 484 MB/s
Write
Peak Sequential Write Speed 		446 MB/s 456 MB/s +2%
4K Read
Peak 4K Random Read Speed 		36.1 MB/s 38.3 MB/s Slightly faster peak random read.
+6%
4K Write
Peak 4K Random Write Speed 		106 MB/s +2% 104 MB/s
Mixed
Peak Sequential Mixed IO Speed 		420 MB/s 423 MB/s +1%
4K Mixed
Peak 4K Random Mixed IO Speed 		42 MB/s 42 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		432 MB/s Slightly faster peak sustained write speed.
+9% 		395 MB/s
Value & Sentiment 
+256%
Market Share
Based on 75,665,121 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		1.27 % Hugely higher market share.
+877% 		0.13 %
Value
Value For Money 		21.4 % Hugely better value.
+86% 		11.5 %
User Rating
UBM User Rating 		53 % +2% 52 %
Price
Price (score) 		$28 Much cheaper.
+60% 		$70
Nice To Haves 
+8%
Age
Newest 		87 Months 78+ Months More recent.
+10%
DQ Read
Peak 4K-64Thread Read Speed 		288 MB/s Slightly faster peak deep queue read.
+7% 		270 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		349 MB/s Slightly faster peak deep queue write.
+9% 		321 MB/s
AS-SSD Total
AS-SSD Total Score 		1,076 Pts Slightly stronger server IO.
+5% 		1,023 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		204 MB/s 306 MB/s Much faster peak deep queue mixed IO.
+50%
ADQ Read
Avg. 4K-64Thread Read Speed 		191 MB/s Faster deep queue read.
+25% 		153 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		214 MB/s Slightly faster deep queue write.
+10% 		195 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		92.7 MB/s 147 MB/s Much faster deep queue mixed IO.
+59%
Specifications 
Capacity
Capacity 		240GB 240GB
Conclusion 
Average Bench 65.8%
Average Bench 70%
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could have used some DRAM, stutters when booting. [Dec '19 ExecutableFiles]

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The advertised read and write speed is nowhere near the ACTUAL read and write speed. Luckily I got them on clearance at Fry's for $30, which is what they should be priced at. [Apr '19 woxozzPC]

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User Builds 
424,288
47,016
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) 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]

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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 i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $182Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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