SamsungMZ-7PD128BW
KingstonSV300S37A/120G

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

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

Real World Speed
Performance profile from 131,458 user samples
14,329 User Benchmarks
Best Bench: 109% 80GB free
Worst Bench: 59% 17GB free
Poor: 59% Great: 109%
SPEED RANK: 225th / 956
117,129 User Benchmarks
Best Bench: 72% 21GB free (System drive)
Worst Bench: 32% 6GB free (System drive)
Poor: 32% Great: 72%
SPEED RANK: 730th / 956
Effective Speed
Effective SSD Speed
87.2 % Much faster effective speed.
+65%
52.9 %
Read
Avg. Sequential Read Speed
438 MB/s Hugely faster read speed.
+96%
223 MB/s
Write
Avg. Sequential Write Speed
312 MB/s Hugely faster write speed.
+154%
123 MB/s
4K Read
Avg. 4K Random Read Speed
30.3 MB/s Much faster random read.
+33%
22.7 MB/s
4K Write
Avg. 4K Random Write Speed
83.1 MB/s Slightly faster random write.
+13%
73.3 MB/s
Mixed
Avg. Sequential Mixed IO Speed
255 MB/s Much faster mixed IO speed.
+65%
155 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
35.4 MB/s Faster random mixed IO.
+22%
28.9 MB/s
SusWrite
Avg. Sustained Write Speed
258 MB/s Hugely faster sustained write speed.
+191%
88.8 MB/s
Read
Peak Sequential Read Speed
492 MB/s Faster peak read speed.
+27%
387 MB/s
Write
Peak Sequential Write Speed
443 MB/s Hugely faster peak write speed.
+190%
153 MB/s
4K Read
Peak 4K Random Read Speed
36.9 MB/s Faster peak random read.
+16%
31.7 MB/s
4K Write
Peak 4K Random Write Speed
118 MB/s Slightly faster peak random write.
+5%
112 MB/s
Mixed
Peak Sequential Mixed IO Speed
323 MB/s Much faster peak mixed IO speed.
+62%
200 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
43.5 MB/s Slightly faster peak random mixed IO.
+7%
40.7 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
425 MB/s Hugely faster peak sustained write speed.
+243%
124 MB/s
Market Share
Based on 8,568,611 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.18 % 1.85 % Hugely higher market share.
+928%
Value
Value For Money
35.6 % 40.4 % Slightly better value.
+14%
User Rating
UBM User Rating
63 % Slightly more popular.
+7%
59 %
Price
Price (score)
$160 $65 Much cheaper.
+59%
Age
Newest
71 Months 70 Months +1%
DQ Read
Peak 4K-64Thread Read Speed
377 MB/s Hugely faster peak deep queue read.
+97%
191 MB/s
DQ Write
Peak 4K-64Thread Write Speed
320 MB/s Hugely faster peak deep queue write.
+111%
152 MB/s
AS-SSD Total
AS-SSD Total Score
1,193 Pts Much stronger server IO.
+77%
676 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
153 MB/s Faster peak deep queue mixed IO.
+18%
130 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
324 MB/s Hugely faster deep queue read.
+238%
96 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
236 MB/s Hugely faster deep queue write.
+103%
116 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
120 MB/s Much faster deep queue mixed IO.
+37%
87.3 MB/s
Capacity
Capacity
128GB 120GB
ADVERTISEMENT

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

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 2018 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]

ADVERTISEMENT

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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $344Samsung 850 Evo 250GB $85
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $114
Intel Core i5-8600K $260AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $150SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $899SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $160SanDisk Ultra Fit 32GB $11
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback