KingstonSV300S37A/120G
CrucialCT128M550SSD1

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

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

Real World Speed
Performance profile from 337,935 user samples
335,523 User Benchmarks
Best Bench: 73% 38GB free
Worst Bench: 31% 6GB free
Poor: 31% Great: 73%
SPEED RANK: 859th / 1058
2,412 User Benchmarks
Best Bench: 105% 63GB free
Worst Bench: 60% 80GB free (System drive)
Poor: 60% Great: 105%
SPEED RANK: 382nd / 1058
Effective Speed
Effective SSD Speed
52.7 % 85.5 % Much faster effective speed.
+62%
Read
Avg. Sequential Read Speed
225 MB/s 415 MB/s Hugely faster read speed.
+84%
Write
Avg. Sequential Write Speed
124 MB/s 334 MB/s Hugely faster write speed.
+169%
4K Read
Avg. 4K Random Read Speed
22.9 MB/s 26.4 MB/s Faster random read.
+15%
4K Write
Avg. 4K Random Write Speed
70.8 MB/s 82.4 MB/s Faster random write.
+16%
Mixed
Avg. Sequential Mixed IO Speed
155 MB/s 288 MB/s Hugely faster mixed IO speed.
+86%
4K Mixed
Avg. 4K Random Mixed IO Speed
28.6 MB/s 36.8 MB/s Faster random mixed IO.
+29%
SusWrite
Avg. Sustained Write Speed
88.2 MB/s 257 MB/s Hugely faster sustained write speed.
+191%
Read
Peak Sequential Read Speed
384 MB/s 469 MB/s Faster peak read speed.
+22%
Write
Peak Sequential Write Speed
153 MB/s 355 MB/s Hugely faster peak write speed.
+132%
4K Read
Peak 4K Random Read Speed
32.5 MB/s +4% 31.4 MB/s
4K Write
Peak 4K Random Write Speed
107 MB/s 118 MB/s Faster peak random write.
+10%
Mixed
Peak Sequential Mixed IO Speed
202 MB/s 321 MB/s Much faster peak mixed IO speed.
+59%
4K Mixed
Peak 4K Random Mixed IO Speed
41 MB/s 45.2 MB/s Faster peak random mixed IO.
+10%
SusWrite
Peak Sequential Sustained Write 60s Average
125 MB/s 350 MB/s Hugely faster peak sustained write speed.
+180%
Market Share
Based on 47,008,743 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.41 % Insanely higher market share.
+4,000%
0.01 %
Value
Value For Money
5.21 % 6.69 % Better value.
+28%
User Rating
UBM User Rating
53 % +4% 51 %
Price
Price (score)
$69 Much cheaper.
+31%
$100
Age
Newest
106 Months 90 Months More recent.
+15%
DQ Read
Peak 4K-64Thread Read Speed
198 MB/s 381 MB/s Hugely faster peak deep queue read.
+92%
DQ Write
Peak 4K-64Thread Write Speed
152 MB/s 329 MB/s Hugely faster peak deep queue write.
+116%
AS-SSD Total
AS-SSD Total Score
682 Pts 1,181 Pts Much stronger server IO.
+73%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
132 MB/s 223 MB/s Much faster peak deep queue mixed IO.
+69%
ADQ Read
Avg. 4K-64Thread Read Speed
102 MB/s 304 MB/s Hugely faster deep queue read.
+198%
ADQ Write
Avg. 4K-64Thread Write Speed
117 MB/s 268 MB/s Hugely faster deep queue write.
+129%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
91.5 MB/s 170 MB/s Hugely faster deep queue mixed IO.
+86%
Capacity
Capacity
120GB 128GB
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The 120GB Kingston V300 has a performance profile that closely matches its 240GB sibling. Both drives utilize a Sandforce LSI controller and therefore demonstrate relative weakness in their write speeds. With burst sequential read/write speeds of 497/166 MBps and 4k burst read/write speeds of 30/97 MBps the 120GB V300 is amongst the slower SSDs I have seen. A concern I have with this drive is the relatively slow real world speeds our users have experienced. Most drives have average throughput rates that are around 75% of peak. Both this and the 240GB V300s, based on 130 samples, are averaging sequential read rates of around 240 MBps which is less than 50% of peak. It's not all bad news though because the V300's are priced extremely aggressively and as a result still offer decent value for money. [Feb '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) September 2021 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 freeware 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 upgrades.

UserBenchmark of the month

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

 Best User Rated

The Best.
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HDDRAMUSB
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