Average Bench: 53.6% (587th of 848)

Based on 7,456 user benchmarks.  Models: Samsung SSD 840 Series, Samsung SSD 840 Seri

Average average bench

The Samsung 840 120GB averaged 46.3% 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 24.1MB/s
Avg. 4K Random Write Speed 63.7MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Samsung 840 120GB is 28.8%. This is a relatively narrow range which indicates that the Samsung 840 120GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Write Speed 106MB/s
Avg. 4K-64Thread Mixed IO Speed 19.5MB/s

Average Bench

(Based on 7,456 samples)
Min Avg Max
331 Read 455 506
38.6 Write 106 133
59.4 Mixed 125 192
49.2% 229 MB/s
Min Avg Max
18.1 4K Read 24.1 29.9
33.4 4K Write 63.7 102
6.96 4K Mixed 9.11 10.6
81.8% 32.3 MB/s
Min Avg Max
22.3 DQ Read 169 329
39.7 DQ Write 93.5 126
8.23 DQ Mixed 19.5 28.2
44.4% 94 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
79GB free
Firmware: DXT0AB0Q Max speed: SATA 3.0 600 MB/s
Read 510
Write 129
Mixed 147
57% 262 MB/s
4K Read 27.2
4K Write 96.1
4K Mixed 9.61
104% 44.3 MB/s
DQ Read 283
DQ Write 123
DQ Mixed 27
67% 144 MB/s
44GB free
Firmware: DXT07B0Q Max speed: SATA 3.0 600 MB/s
Read 490
Write 104
Mixed 124
52% 239 MB/s
4K Read 23.2
4K Write 51.7
4K Mixed 9.95
75% 28.3 MB/s
DQ Read 317
DQ Write 120
DQ Mixed 27.6
71% 155 MB/s
2GB free
Firmware: DXT0AB0Q Max speed: SATA 3.0 600 MB/s
Read 487
Write 89.8
Mixed 109
49% 229 MB/s
4K Read 24.3
4K Write 71
4K Mixed 9.99
87% 35.1 MB/s
DQ Read 189
DQ Write 78.9
DQ Mixed 26.1
48% 98.1 MB/s
62GB free
Firmware: DXT0AB0Q Max speed: SATA 3.0 600 MB/s
Read 469
Write 131
Mixed 156
54% 252 MB/s
4K Read 21.1
4K Write 49.4
4K Mixed 9.37
70% 26.6 MB/s
DQ Read 132
DQ Write 125
DQ Mixed 24
47% 93.5 MB/s
7,456 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,595,267 SSDs tested.

Typical 840 120GB Builds (Compare 5,650 builds) See popular component choices, score breakdowns and rankings.
Gaming 59%
Desktop 61%
Workstation 38%
Jet ski

Motherboard: Asrock Z77 Extreme4 - $147

EDIT WITH CUSTOM PC BUILDER Value: 63% - Good Total price: $1,025

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) April 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]


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

The single best upgrade for your PC...

Added 2 years ago.


7 months 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'.


2 years ago.

Deal  info.map-team.de/...

Geld verdienen

▲Like   ▼Dislike

You have viewed 43 pages, please contribute.

848 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 i7-7700K $310Nvidia GTX 1070 $330Samsung 850 Evo 250GB $106
Intel Core i5-7600K $229AMD RX 480 $217Samsung 850 Pro 256GB $140
Intel Pentium G4560 $60Nvidia GTX 1060-6GB $219Samsung 850 Evo 500GB $170
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $122SanDisk Extreme 64GB $35
Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $700SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $46Corsair Vengeance LPX DDR4 3200 C16 2x8GB $137SanDisk Ultra Fit 32GB $9
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback