Average Bench: 87.5% (331st of 1040)

Based on 32,228 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 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 121MB/s
Avg. 4K Random Read Speed 30.1MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Pro 128GB is 50.8%. 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 259MB/s
Avg. Sustained Write Speed 269MB/s
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Average Bench

(Based on 32,228 samples)
Min Avg Max
332 Read 439 496
134 Write 322 443
166 Mixed 259 330
94.8 SusWrite 269 435
72% 322 MB/s
Min Avg Max
21.7 4K Read 30.1 36.3
42.4 4K Write 81.7 115
24 4K Mixed 35.2 44
134% 49 MB/s
Min Avg Max
172 DQ Read 326 376
95.6 DQ Write 238 325
55.6 DQ Mixed 121 155
134% 228 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
319GB free
Firmware: DXM05B0Q
SusWrite @10s intervals: 231 427 424 434 422 423 MB/s
Read 458
Write 441
Mixed 320
SusWrite 393
91% 403 MB/s
4K Read 28.6
4K Write 116
4K Mixed 38.6
154% 61 MB/s
DQ Read 373
DQ Write 304
DQ Mixed 153
165% 277 MB/s
33GB free (System drive)
Firmware: DXM04B0Q
SusWrite @10s intervals: 250 292 310 286 277 250 MB/s
Read 467
Write 329
Mixed 261
SusWrite 277
74% 333 MB/s
4K Read 30.3
4K Write 91.4
4K Mixed 40.3
146% 54 MB/s
DQ Read 369
DQ Write 311
DQ Mixed 125
152% 268 MB/s
41GB free (System drive)
Firmware: DXM06B0Q
SusWrite @10s intervals: 154 164 155 146 139 135 MB/s
Read 407
Write 252
Mixed 207
SusWrite 148
56% 254 MB/s
4K Read 25.4
4K Write 56.2
4K Mixed 28.8
105% 36.8 MB/s
DQ Read 358
DQ Write 171
DQ Mixed 109
122% 213 MB/s
32,228 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 34,693,830 SSDs tested.

 Prices

Approx. $131 @ launch in Oct '12
AmazonUS $1603 years
OutletPCUS $1983 years
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Typical 840 Pro 128GB Builds (Compare 4,335 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 64%
Destroyer
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 50%
Yacht

Motherboard: MSI Z87-G45 GAMING (MS-7821) - $242

EDIT WITH CUSTOM PC BUILDER Value: 53% - Above average Total price: $912

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.
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  • - Explore your best upgrade options with a virtual PC build.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) November 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]

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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 6 years ago.

Above average

6 years ago.


Your
opinion?
1040 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 i5-9600K $190Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $34
Intel Core i5-9400F $150Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10600K $260Nvidia GTX 1650S (Super) $190Samsung 860 Evo 250GB $44
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $64SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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