Average Bench: 61.2% (727th of 1016)

Based on 31,584 user benchmarks.  Models: Samsung SSD 840 Series, Samsung SSD 840 Seri

Above average average bench

The Samsung 840 120GB averaged 38.8% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K Random Read Speed 25.5MB/s
Avg. 4K Random Write Speed 70.8MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Samsung 840 120GB is 28.1%. This is a relatively narrow range which indicates that the Samsung 840 120GB performs reasonably consistently under varying real world conditions.


Avg. Sustained Write Speed 99.7MB/s
Avg. Sequential Write Speed 113MB/s

Average Bench

(Based on 31,584 samples)
Min Avg Max
318 Read 426 487
55.9 Write 113 136
73.7 Mixed 116 133
38.6 SusWrite 99.7 132
41.2% 189 MB/s
Min Avg Max
18.5 4K Read 25.5 30.2
39.1 4K Write 70.8 103
14.4 4K Mixed 18.5 21.5
99.8% 38.3 MB/s
Min Avg Max
30.3 DQ Read 284 335
51 DQ Write 105 129
20.8 DQ Mixed 45.8 50.7
72.9% 145 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
81GB free
Firmware: DXT0AB0Q
SusWrite @10s intervals: 131 131 131 130 131 131 MB/s
Read 485
Write 132
Mixed 127
SusWrite 131
48% 219 MB/s
4K Read 31
4K Write 110
4K Mixed 22.3
134% 54.4 MB/s
DQ Read 340
DQ Write 126
DQ Mixed 51
86% 173 MB/s
108GB free
Firmware: DXT08B0Q
SusWrite @10s intervals: 132 131 131 131 132 132 MB/s
Read 460
Write 136
Mixed 130
SusWrite 131
47% 214 MB/s
4K Read 30.6
4K Write 113
4K Mixed 19.4
131% 54.3 MB/s
DQ Read 322
DQ Write 127
DQ Mixed 47.1
82% 166 MB/s
42GB free (System drive)
Firmware: DXT08B0Q
SusWrite @10s intervals: 110 90 87 93 98 88 MB/s
Read 398
Write 130
Mixed 111
SusWrite 94.5
40% 183 MB/s
4K Read 23
4K Write 64.7
4K Mixed 18.4
93% 35.4 MB/s
DQ Read 231
DQ Write 124
DQ Mixed 45.4
69% 133 MB/s
31,584 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,680,567 SSDs tested.

Typical 840 120GB Builds (Compare 16,097 builds) See popular component choices, score breakdowns and rankings.
Gaming 49%
Desktop 58%
Workstation 32%
Sail boat

Motherboard: Asus P8Z77-V LX - $182

EDIT WITH CUSTOM PC BUILDER Value: 37% - Below average Total price: $914

Popular 840 120GB compatible motherboards:

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.
Solid State Drive Rankings (Price vs Performance) January 2020 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]


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.


Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode TLC

The single best upgrade for your PC...

Added 5 years ago.


3 years ago.

Just one problem, time of release makes it slower (tech-wise talking, of course). Tweaks for software and system OS caches mitigates the problem (durability and performance on SATA-II without AHCI). Would the solution be a newer and latest SSD? I don't think so because my main problem is my old G41 motherboard and processor, but it's still 3 or 4 times better than a SATA-III 6gbps HDD for OS and software in my honest opinion. Al least my build will last from 4 to 6 years to me for basic tasks until I get the buck for a 'Battleship PC'.


5 years ago.

Deal  info.map-team.de/...

Geld verdienen

1016 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-9600K $218Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $43
Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $643SanDisk Ultra Fit 32GB $16
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