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CrucialCT128M550SSD1
KingstonSV300S37A/240G
▲ 51137 ▼

Controller: Marvell 88SS9189. Flash Memory: Micron Synchronous 20nm MLC. Release date: Q1 2014.

VS
▲ 538,211 ▼

Controller: LSI SandForce SF2281. Flash Memory: Toshiba 19nm Toggle Mode MLC. Release date: Q4 2012.

Effective Speed 
+34%
Real World Speed
Performance profile from 179,386 user samples
Benchmark your SSD here
2,673 User Benchmarks
Best Bench: 104% 72GB free
Worst Bench: 58% 7GB free (System drive)
Poor: 58% Great: 104%
SPEED RANK: 395th / 1071
176,713 User Benchmarks
Best Bench: 85% 223GB free
Worst Bench: 41% 91GB free (System drive)
Poor: 41% Great: 85%
SPEED RANK: 751st / 1071
Effective Speed
Effective SSD Speed 		85.6 % Much faster effective speed.
+34% 		64.1 %
Average Score 
+37%
Read
Avg. Sequential Read Speed 		420 MB/s Much faster read speed.
+47% 		286 MB/s
Write
Avg. Sequential Write Speed 		335 MB/s Much faster write speed.
+60% 		209 MB/s
4K Read
Avg. 4K Random Read Speed 		26.7 MB/s Faster random read.
+13% 		23.7 MB/s
4K Write
Avg. 4K Random Write Speed 		82.3 MB/s +5% 78.4 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		288 MB/s Much faster mixed IO speed.
+30% 		221 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		36.8 MB/s Faster random mixed IO.
+12% 		32.8 MB/s
SusWrite
Avg. Sustained Write Speed 		253 MB/s Hugely faster sustained write speed.
+92% 		132 MB/s
Peak Score 
+22%
Read
Peak Sequential Read Speed 		471 MB/s Faster peak read speed.
+13% 		416 MB/s
Write
Peak Sequential Write Speed 		355 MB/s Much faster peak write speed.
+34% 		264 MB/s
4K Read
Peak 4K Random Read Speed 		31.5 MB/s 33.1 MB/s Slightly faster peak random read.
+5%
4K Write
Peak 4K Random Write Speed 		117 MB/s Slightly faster peak random write.
+6% 		110 MB/s
Mixed
Peak Sequential Mixed IO Speed 		323 MB/s Faster peak mixed IO speed.
+15% 		281 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		45.1 MB/s +2% 44.2 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		353 MB/s Hugely faster peak sustained write speed.
+85% 		191 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 75,630,713 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.13 % Insanely higher market share.
+∞%
Value
Value For Money 		13.3 % 17.6 % Much better value.
+33%
User Rating
UBM User Rating 		51 % 53 % +4%
Price
Price (score) 		$40 $35 Cheaper.
+12%
Nice To Haves 
+34%
Age
Newest 		120 Months More recent.
+12% 		137 Months
DQ Read
Peak 4K-64Thread Read Speed 		381 MB/s Much faster peak deep queue read.
+47% 		259 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		329 MB/s Faster peak deep queue write.
+29% 		255 MB/s
AS-SSD Total
AS-SSD Total Score 		1,181 Pts Much stronger server IO.
+31% 		901 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		223 MB/s +5% 213 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		310 MB/s Hugely faster deep queue read.
+96% 		158 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		268 MB/s Much faster deep queue write.
+40% 		192 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		175 MB/s Faster deep queue mixed IO.
+14% 		153 MB/s
Specifications 
Capacity
Capacity 		128GB 240GB
Conclusion 
Average Bench 85.6%
Average Bench 64.1%
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This is yet another Sandforce 2881 based SSD from Kingston, this time coupled with newer 19nm Nand flash. In terms of performance the V300 is nothing we haven't seen before with other Sandforce based SSDs. A side-by-side comparison with the HyperX shows that the two drives have a near identical performance profile which is more than a little disappointing given that the V300 is 16 months newer. With a sequential write speed of just 280 MB/s the V300 lags the group leaders by 62%, an expected result for a Sandforce based drive. To conclude, Kingston aren't offering anything new with the V300, consequently there are far faster (and cheaper) drives available elsewhere including the excellent Samsung Evo which is the current group leader. [Jan '14 SSDrivePro]

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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?
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 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $131Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair 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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