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SamsungMZ-7PD128BW
KingstonSV300S37A/240G
▲ 542,764 ▼

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC. Release date: Q4 2012.

VS
▲ 538,212 ▼

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

Effective Speed 
+40%
Real World Speed
Performance profile from 211,555 user samples
Benchmark your SSD here
34,842 User Benchmarks
Best Bench: 110% 62GB free
Worst Bench: 62% 119GB free
Poor: 62% Great: 110%
SPEED RANK: 344th / 1080
176,713 User Benchmarks
Best Bench: 85% 223GB free
Worst Bench: 41% 91GB free (System drive)
Poor: 41% Great: 85%
SPEED RANK: 760th / 1080
Effective Speed
Effective SSD Speed 		89.5 % Much faster effective speed.
+40% 		64.1 %
Average Score 
+42%
Read
Avg. Sequential Read Speed 		444 MB/s Much faster read speed.
+55% 		286 MB/s
Write
Avg. Sequential Write Speed 		336 MB/s Much faster write speed.
+61% 		209 MB/s
4K Read
Avg. 4K Random Read Speed 		30.5 MB/s Faster random read.
+29% 		23.7 MB/s
4K Write
Avg. 4K Random Write Speed 		81.6 MB/s +4% 78.4 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		268 MB/s Faster mixed IO speed.
+21% 		221 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		35.9 MB/s Slightly faster random mixed IO.
+9% 		32.8 MB/s
SusWrite
Avg. Sustained Write Speed 		286 MB/s Hugely faster sustained write speed.
+117% 		132 MB/s
Peak Score 
+35%
Read
Peak Sequential Read Speed 		497 MB/s Faster peak read speed.
+19% 		416 MB/s
Write
Peak Sequential Write Speed 		445 MB/s Much faster peak write speed.
+69% 		264 MB/s
4K Read
Peak 4K Random Read Speed 		36.3 MB/s Slightly faster peak random read.
+10% 		33.1 MB/s
4K Write
Peak 4K Random Write Speed 		113 MB/s +3% 110 MB/s
Mixed
Peak Sequential Mixed IO Speed 		331 MB/s Faster peak mixed IO speed.
+18% 		281 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		44.1 MB/s 44.2 MB/s +0%
SusWrite
Peak Sequential Sustained Write 60s Average 		440 MB/s Hugely faster peak sustained write speed.
+130% 		191 MB/s
Value & Sentiment 
+62%
Market Share
Based on 77,609,383 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.04 % 0.1 % Hugely higher market share.
+150%
Value
Value For Money 		5.17 % 8.35 % Much better value.
+62%
User Rating
UBM User Rating 		54 % +2% 53 %
Price
Price (score) 		$150 $95 Much cheaper.
+37%
Nice To Haves 
+23%
Age
Newest 		145 Months 144 Months +1%
DQ Read
Peak 4K-64Thread Read Speed 		376 MB/s Much faster peak deep queue read.
+45% 		259 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		330 MB/s Faster peak deep queue write.
+29% 		255 MB/s
AS-SSD Total
AS-SSD Total Score 		1,196 Pts Much stronger server IO.
+33% 		901 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		155 MB/s 213 MB/s Much faster peak deep queue mixed IO.
+37%
ADQ Read
Avg. 4K-64Thread Read Speed 		332 MB/s Hugely faster deep queue read.
+110% 		158 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		245 MB/s Faster deep queue write.
+28% 		192 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		126 MB/s 153 MB/s Faster deep queue mixed IO.
+21%
Specifications 
Capacity
Capacity 		128GB 240GB
Conclusion 
Average Bench 89.5%
Average Bench 64.1%

The 128GB 840 Pro is a rock solid performer. On release, nearly a year and a half ago, the Pro smashed several speed records. Today, with sequential read/write speeds of 519/438 MBps, the Pro is still one of the fastest SSDs available. One of the Pro's top competitors is Samsungs own, newer 840 Evo. Looking at a raw synthetic speed comparison of the 128GB Pro and Evo is a little misleading. On the face of it the Pro only has a marginal lead over the Evo. This due to the fact that the Evo can only maintain its burst write speed for transfers of up to 3GB, the size of its SLC cache. The Pro on the other hand can sustain higher throughputs indefinitely. The Pro also utilizes MLC which is rated for far more erase cycles than the TLC used in the Evo. Server IO is often continuous and would quickly exhaust the 3GB cache on the Evo but for typical consumer use the Evo will remain within the SLC cache most of the time. [Feb '14 SSDrivePro]

MORE DETAILS

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]

MORE DETAILS

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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.
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 Frequently Asked Questions

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Solid State Drives
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