Average Bench: 103% (198th of 1011)

Based on 75,525 user benchmarks.  Models: Samsung SSD 850 PRO 256GB, Samsun SSD 850 PRO 256G, Samsung SSD 850 PRO 256G, Samsung SSD 850 PRO, Samsung SSD 850

The 256GB Samsung 850 Pro is the fastest consumer SSD we have seen to date. Thanks to Samsung's new 3D V-NAND the 850 Pro has lower power consumption and better performance, albeit marginally, than both the 840 Evo and 840 Pro. Looking at the benchmark figures for the 840 and 850 Pros shows that the effective performance improvement is 10% whereas the 850 Pro beats the 840 Evo by 16%. These drives effectively saturate SATA 3.0 making it difficult to distinguish between them in day-to-day use. At current prices the 850 Pro is prohibitively expensive, prices need to drop by 15% before it approaches the 840 Pro from a value perspective. Samsung may release a value orientated 850 Evo soon, but for now "most" users are better off with the 840 Pro. [Oct '14 SSDrivePro]


Outstanding average bench

The Samsung 850 Pro 256GB averaged 3.2% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung 850 Pro 256GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 298MB/s
Avg. 4K Random Mixed IO Speed 43.7MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 52.1%. This is a relatively wide range which indicates that the Samsung 850 Pro 256GB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 342MB/s
Avg. Sustained Write Speed 363MB/s

Average Bench

(Based on 75,525 samples)
Min Avg Max
365 Read 473 516
208 Write 414 490
247 Mixed 342 384
127 SusWrite 363 484
89.4% 398 MB/s
Min Avg Max
23 4K Read 33.3 43
47.9 4K Write 91.6 127
29.1 4K Mixed 43.7 56.2
155% 56.2 MB/s
Min Avg Max
200 DQ Read 341 388
140 DQ Write 296 358
74.5 DQ Mixed 298 358
229% 312 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
137GB free (System drive)
Firmware: EXM02B6Q
SusWrite @10s intervals: 292 385 430 423 415 425 MB/s
Read 450
Write 428
Mixed 330
SusWrite 395
90% 401 MB/s
4K Read 27.5
4K Write 104
4K Mixed 42.3
151% 57.9 MB/s
DQ Read 384
DQ Write 339
DQ Mixed 308
246% 344 MB/s
75,525 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 17,623,816 SSDs tested.


Approx. $232 @ launch in Jul '14
AmazonUS $2119 mins
EbayUS $22122 mins
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Typical 850 Pro 256GB Builds (Compare 30,704 builds) See popular component choices, score breakdowns and rankings.
Gaming 74%
Desktop 79%
Workstation 56%

Motherboard: Asus Z170 PRO GAMING - $228

EDIT WITH CUSTOM PC BUILDER Value: 50% - Above average Total price: $1,199

Popular 850 Pro 256GB 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) September 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]


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.


Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND

The world's first 3D vertical NAND flash memory...

Added 5 years ago.

Good (edit your comment) Add link

1 month ago.

its very slow i cant even transfer anything on it without my pc exploding dkfhueiouhfdios;


Awesome drive, own one and can say that coupled with Windows 8.1, the boot speed is virtually instantaneous—Sep '14


Besides killer raw speed, Samsung ships Magician software with it that provides additional tuning and longevity options. Fabulous overall package.—Dec '14


very impressed with speed compared to the 850 evo which was noticibly slower on my system. I sent the evo back and now all I will buy is 850 pro.—Feb '15


Very reliable product, 10 year warranty provides a lot of relief and the rapid discounting in the channel has made this a no brainer—May '15


2 months ago.

It is similar to Evo version, It doesn't deserve the price


19 days ago.

Simply the best non-M.2 SSD out there..


2 days ago.

Reliable and fast, really fast


9 months ago.


Line up challengers, I dare you—May '16


18 months ago.

Nice one its third i bought from samsung very satisfied :)


6 months ago.


Excellent drive very consistent and blazingly fast —Mar '15


11 days ago.

One of the fastest SSD I ever have, plus 10 years warranty!


8 months ago.

Fastest, most reliable and best performance/price in Denmark Okt. 2015


2 months ago.

this expected to be my next ssd unless better ssd will be released the next year.


4 years ago.


4 years ago.

10/10 perfect


24 months ago.

Pure Quality meets good Price. Love this SSD


4 months ago.

Make for a great upgrade for computers that will mostly be store to cloud drives, but need the performance and reliability that SSDs have.


4 years ago.

The 850 PRO is the best SSD there is to date. Lets not forget RAPID mode guys :)


4 years ago.

Can't beat the all-around performance on this.


3 years ago.

Excellent speed. Also after the price drop it is very much worth it.


2 years ago.

Been using this drive for years, no performance change, runs like the day I bought it. Definitely recommend.


21 months ago.

In use as primary drive since fall 2015. Win 8.1, home use. No issues. User folders relocated to secondary drive.

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.
Intel Core i5-9400F $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $80
Intel Core i5-9600K $219Nvidia GTX 1660-Ti $270Samsung 850 Evo 500GB $105
AMD Ryzen 5 3600 $195Nvidia RTX 2060 $340Samsung 850 Pro 256GB $211
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $34G.SKILL Trident Z DDR4 3200 C14 4x16GB $624SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $64Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 16GB $24
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