Average Bench: 87.6% (262nd of 980)

Based on 16,010 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 12.4% 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 120MB/s
Avg. 4K Random Read Speed 30.5MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Pro 128GB is 50.6%. 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 256MB/s
Avg. Sustained Write Speed 256MB/s
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Average Bench

(Based on 16,010 samples)
Min Avg Max
329 Read 439 493
120 Write 314 445
170 Mixed 256 328
76.8 SusWrite 256 437
70.6% 316 MB/s
Min Avg Max
22.7 4K Read 30.5 36.7
46.3 4K Write 85.1 119
26.1 4K Mixed 35.6 44.5
137% 50.4 MB/s
Min Avg Max
97.4 DQ Read 328 376
96.5 DQ Write 235 327
43.6 DQ Mixed 120 155
134% 228 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
34GB free (System drive)
Firmware: DXM05B0Q
SusWrite @10s intervals: 236 232 220 218 218 210 MB/s
Read 479
Write 357
Mixed 273
SusWrite 222
74% 333 MB/s
4K Read 35
4K Write 104
4K Mixed 42.8
163% 60.8 MB/s
DQ Read 322
DQ Write 274
DQ Mixed 142
149% 246 MB/s
100GB free (System drive)
Firmware: DXM05B0Q
SusWrite @10s intervals: 329 329 346 346 345 340 MB/s
Read 375
Write 356
Mixed 238
SusWrite 339
74% 327 MB/s
4K Read 26.2
4K Write 84.7
4K Mixed 30.8
124% 47.2 MB/s
DQ Read 32.1
DQ Write 125
DQ Mixed 41.3
43% 66.2 MB/s
16,010 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 11,409,242 SSDs tested.

 Prices

Approx. $131 @ launch in Oct '12
AmazonUS $16017 months
OutletPCUS $19824 months
EbayUS $20041 mins
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Typical 840 Pro 128GB Builds (Compare 11,162 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 59%
Gunboat
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 40%
Jet ski

Motherboard: Asrock Z77 Extreme4 - $167

EDIT WITH CUSTOM PC BUILDER Value: 61% - Good Total price: $1,051

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.

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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.
  • - 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 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 4 years ago.

Above average

4 years ago.


Your
opinion?
980 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 i7-8700K $360Nvidia GTX 1070 $350Samsung 850 Evo 250GB $70
AMD Ryzen 5 1600 $159Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $89
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $700Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $115SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $780SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $125SanDisk Ultra Fit 32GB $12
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