Average Bench: 89.5% (338th of 1074)

Based on 34,842 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]

Very good average bench

The Samsung 840 Pro 128GB averaged just 10.4% 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 126MB/s
Avg. 4K Random Read Speed 30.5MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Pro 128GB is 48.5%. 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 268MB/s
Avg. Sustained Write Speed 286MB/s
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Average Bench

(Based on 34,842 samples)
Min Avg Max
346 Read 444 497
132 Write 336 445
175 Mixed 268 331
87.3 SusWrite 286 440
74.6% 333 MB/s
Min Avg Max
20.9 4K Read 30.5 36.3
39.3 4K Write 81.6 113
23.9 4K Mixed 35.9 44.1
136% 49.3 MB/s
Min Avg Max
214 DQ Read 332 376
97.2 DQ Write 245 330
88.3 DQ Mixed 126 155
138% 234 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
97GB free
Firmware: DXM05B0Q
SusWrite @10s intervals: 439 442 438 440 438 437 MB/s
Read 509
Write 444
Mixed 333
SusWrite 439
97% 431 MB/s
4K Read 35.3
4K Write 111
4K Mixed 44.6
170% 63.7 MB/s
DQ Read 374
DQ Write 303
DQ Mixed 157
167% 278 MB/s
34GB free (System drive)
Firmware: DXM05B0Q
SusWrite @10s intervals: 119 111 112 111 110 112 MB/s
Read 413
Write 187
Mixed 202
SusWrite 113
50% 229 MB/s
4K Read 29.1
4K Write 73.2
4K Mixed 33.2
125% 45.2 MB/s
DQ Read 369
DQ Write 113
DQ Mixed 107
114% 196 MB/s
34,842 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,995,867 SSDs tested

 Prices

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MSRP ≈ $131 @ launch in Oct '12
EbayUS $1502 mins
AmazonUS $1606 years
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Typical 840 Pro 128GB Builds (Compare 4,036 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 37%
Jet ski
Desktop
Desktop 77%
Battleship
Workstation
Workstation 29%
Raft

Motherboard: Asrock Z77 Extreme4 - $165

EDIT WITH CUSTOM PC BUILDER Value: 49% - Average Total price: $651

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 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 value for money upgrades.

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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
  • - SkillBench (space shooter) tests user input accuracy
  • - 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
Solid State Drive Rankings (Price vs Performance) May 2024 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 10 years ago.

Above average

10 years ago.


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opinion?
1074 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 i5-12600K $176Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-12400F $124Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-13600K $260Nvidia RTX 4070 $549Samsung 870 Evo 250GB $45
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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