Average Bench: 88.3% (290th of 1011)

Based on 19,602 user benchmarks.  Models: Samsung SSD 840 PRO Series, Samsung SSD 840, Samsung SSD 840 PRO Seri, Samsung SSD 840 PRO

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]

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Very good average bench

The Samsung 840 Pro 128GB averaged just 11.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung 840 Pro 128GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 119MB/s
Avg. 4K Random Read Speed 30.6MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Pro 128GB is 51%. This is a relatively wide range which indicates that the Samsung 840 Pro 128GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 262MB/s
Avg. Sustained Write Speed 275MB/s
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Average Bench

(Based on 19,602 samples)
Min Avg Max
341 Read 442 498
130 Write 326 447
172 Mixed 262 326
80.7 SusWrite 275 437
72.9% 326 MB/s
Min Avg Max
22.3 4K Read 30.6 36.8
43.5 4K Write 84.2 120
25.5 4K Mixed 35.8 44.8
137% 50.2 MB/s
Min Avg Max
62.1 DQ Read 310 377
96.8 DQ Write 231 326
41.6 DQ Mixed 119 154
130% 220 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
68GB free (System drive)
Firmware: DXM05B0Q
SusWrite @10s intervals: 431 433 435 384 419 414 MB/s
Read 482
Write 445
Mixed 313
SusWrite 420
93% 415 MB/s
4K Read 36.8
4K Write 121
4K Mixed 45.4
178% 67.7 MB/s
DQ Read 364
DQ Write 335
DQ Mixed 151
168% 284 MB/s
95GB free (System drive)
Firmware: DXM05B0Q
SusWrite @10s intervals: 348 363 367 343 407 419 MB/s
Read 389
Write 353
Mixed 288
SusWrite 375
79% 351 MB/s
4K Read 18.2
4K Write 40.2
4K Mixed 25.8
82% 28.1 MB/s
DQ Read 280
DQ Write 244
DQ Mixed 139
138% 221 MB/s
19,602 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 16,944,654 SSDs tested.

 Prices

Approx. $131 @ launch in Oct '12
AmazonUS $1602 years
OutletPCUS $1982 years
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Typical 840 Pro 128GB Builds (Compare 14,802 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 47%
Yacht
Desktop
Desktop 63%
Destroyer
Workstation
Workstation 34%
Sail boat

Motherboard: Asrock Z77 Extreme4 - $167

EDIT WITH CUSTOM PC BUILDER Value: 34% - Below average Total price: $921

Popular 840 Pro 128GB 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) August 2019 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]

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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.

 Comments

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

Delivers high speeds for both compressible and incompressible data...

Added 5 years ago.

Above average

5 years ago.


Your
opinion?
1011 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.
CPUGPUSSD
Intel Core i5-9400F $143Nvidia GTX 1660 $220Samsung 850 Evo 250GB $86
Intel Core i5-9600K $219Nvidia GTX 1660-Ti $270Samsung 850 Evo 500GB $102
AMD Ryzen 5 3600 $196AMD RX 580 $173Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $42G.SKILL Trident Z DDR4 3200 C14 4x16GB $799SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 16GB $24
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