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SanDiskSD6SF1M-128G-1022
KingstonSV300S37A/120G
▲ 51600 ▼

Controller: Marvell 9175. Flash Memory: SanDisk 19nm Toggle Mode MLC. Release date: Q3 2013.

VS
▲ 545,433 ▼

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

Effective Speed 
+30%
Real World Speed
Performance profile from 340,007 user samples
Benchmark your SSD here
987 User Benchmarks
Best Bench: 86% 32GB free (System drive)
Worst Bench: 52% 58GB free (System drive)
Poor: 52% Great: 86%
SPEED RANK: 683rd / 1080
339,020 User Benchmarks
Best Bench: 73% 15GB free
Worst Bench: 30% 77GB free (System drive)
Poor: 30% Great: 73%
SPEED RANK: 875th / 1080
Effective Speed
Effective SSD Speed 		69.6 % Faster effective speed.
+30% 		53.6 %
Average Score 
+43%
Read
Avg. Sequential Read Speed 		424 MB/s Hugely faster read speed.
+87% 		227 MB/s
Write
Avg. Sequential Write Speed 		249 MB/s Hugely faster write speed.
+104% 		122 MB/s
4K Read
Avg. 4K Random Read Speed 		22.7 MB/s 22.9 MB/s +1%
4K Write
Avg. 4K Random Write Speed 		57.5 MB/s 73.9 MB/s Faster random write.
+29%
Mixed
Avg. Sequential Mixed IO Speed 		185 MB/s Faster mixed IO speed.
+19% 		155 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		25.1 MB/s 29.4 MB/s Faster random mixed IO.
+17%
SusWrite
Avg. Sustained Write Speed 		211 MB/s Hugely faster sustained write speed.
+139% 		88.3 MB/s
Peak Score 
+30%
Read
Peak Sequential Read Speed 		478 MB/s Faster peak read speed.
+24% 		385 MB/s
Write
Peak Sequential Write Speed 		293 MB/s Hugely faster peak write speed.
+92% 		153 MB/s
4K Read
Peak 4K Random Read Speed 		30.6 MB/s 32.1 MB/s +5%
4K Write
Peak 4K Random Write Speed 		93.2 MB/s 108 MB/s Faster peak random write.
+16%
Mixed
Peak Sequential Mixed IO Speed 		220 MB/s Slightly faster peak mixed IO speed.
+8% 		204 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		34.6 MB/s 41.4 MB/s Faster peak random mixed IO.
+20%
SusWrite
Peak Sequential Sustained Write 60s Average 		286 MB/s Hugely faster peak sustained write speed.
+125% 		127 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 77,609,383 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0.15 % Insanely higher market share.
+∞%
Value
Value For Money 		6.44 % 8.68 % Much better value.
+35%
User Rating
UBM User Rating 		51 % 54 % Slightly more popular.
+6%
Price
Price (score) 		$80 $36 Much cheaper.
+56%
Nice To Haves 
+47%
Age
Newest 		136 Months Slightly more recent.
+6% 		144 Months
DQ Read
Peak 4K-64Thread Read Speed 		317 MB/s Much faster peak deep queue read.
+63% 		195 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		198 MB/s Faster peak deep queue write.
+29% 		153 MB/s
AS-SSD Total
AS-SSD Total Score 		920 Pts Much stronger server IO.
+35% 		679 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		124 MB/s 133 MB/s Slightly faster peak deep queue mixed IO.
+7%
ADQ Read
Avg. 4K-64Thread Read Speed 		283 MB/s Hugely faster deep queue read.
+180% 		101 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		176 MB/s Much faster deep queue write.
+49% 		118 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		114 MB/s Faster deep queue mixed IO.
+24% 		91.6 MB/s
Specifications 
Capacity
Capacity 		128GB 120GB
Conclusion 
Average Bench 69.6%
Average Bench 53.6%

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]

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339,020
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Solid State Drive Rankings (Price vs Performance) November 2024 SSD Rankings

Welcome to our 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]

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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  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
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  • - Reports are generated and presented on userbenchmark.com
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  • - See speed test results from other users
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 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?
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Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
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Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
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