Average Bench: 98% (59th of 853)

Based on 23,426 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]


Excellent average bench

The Samsung 850 Pro 256GB averaged just 2.0% lower 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 Random Read Speed 32.4MB/s
Avg. 4K Random Write Speed 89.5MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 56.4%. This is a relatively wide range which indicates that the Samsung 850 Pro 256GB performs inconsistently under varying real world conditions.


Avg. 4K-64Thread Read Speed 196MB/s
Avg. Sequential Write Speed 432MB/s

Average Bench

(Based on 23,426 samples)
Min Avg Max
375 Read 501 528
198 Write 432 501
255 Mixed 454 513
103% 462 MB/s
Min Avg Max
22.4 4K Read 32.4 43.1
41 4K Write 89.5 128
17.8 4K Mixed 33.5 50.1
139% 51.8 MB/s
Min Avg Max
27.5 DQ Read 196 382
75.4 DQ Write 224 342
17.1 DQ Mixed 84.1 165
98.1% 168 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
192GB free
Firmware: EXM04B6Q Max speed: SATA 3.0 600 MB/s
Read 527
Write 489
Mixed 511
114% 509 MB/s
4K Read 38.8
4K Write 124
4K Mixed 47.1
185% 70.1 MB/s
DQ Read 392
DQ Write 350
DQ Mixed 166
180% 302 MB/s
15GB free
Firmware: EXM02B6Q Max speed: SATA 3.0 600 MB/s
Read 403
Write 258
Mixed 243
67% 301 MB/s
4K Read 29.5
4K Write 59.7
4K Mixed 20.6
103% 36.6 MB/s
DQ Read 34.8
DQ Write 84.2
DQ Mixed 20
26% 46.3 MB/s
201GB free
Firmware: EXM03B6Q Max speed: SATA 3.0 600 MB/s
Read 310
Write 177
Mixed 221
52% 236 MB/s
4K Read 19.1
4K Write 53.7
4K Mixed 20.5
84% 31.1 MB/s
DQ Read 30
DQ Write 149
DQ Mixed 89.4
69% 89.6 MB/s
23,426 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,281,939 SSDs tested.


EbayUS $135.9912 mins ago.
AmazonUS $137.703 hrs ago.
NeweggUS $137.997 hrs ago.
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Typical 850 Pro 256GB Builds (Compare 5,034 builds) See popular component choices, score breakdowns and rankings.
Gaming 63%
Desktop 80%
Aircraft carrier
Workstation 59%

Motherboard: Asus MAXIMUS VII HERO

EDIT WITH CUSTOM PC BUILDER Value: 70% - Good Total price: $964

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) July 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]


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

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

Added 3 years ago.

Excellent (edit your comment) Add link

18 days ago.

it's awesome!


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


29 days ago.

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


2 years ago.


16 days ago.

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


26 days ago.

Reliable and fast, really fast


15 days ago.


Line up challengers, I dare you—May '16


23 days ago.

Cheap fast SSD


1 month ago.

Hope i get this soon


30 days ago.



1 month ago.

best sata disk ever


1 month ago.

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


2 months ago.

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


1 month ago.

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


1 month ago.

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


14 days ago.


Excellent drive very consistent and blazingly fast —Mar '15


2 years ago.

10/10 perfect


2 years ago.

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


24 months ago.

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


10 months ago.

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

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853 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 i7-7700K $295Nvidia GTX 1070 $390Samsung 850 Evo 250GB $97
AMD Ryzen 7 1700 $268AMD RX 480 $260Samsung 850 Pro 256GB $136
Intel Core i5-7600K $238Nvidia GTX 1060-6GB $239Samsung 850 Evo 500GB $159
Seagate Barracuda 1TB (2016) $50G.SKILL Trident Z DDR4 3200 C14 4x16GB $714SanDisk Extreme 64GB $34
Seagate Barracuda 3TB (2016) $83Corsair Vengeance LPX DDR4 3000 C15 2x8GB $132SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $44HyperX Fury DDR4 2133 C14 2x8GB $143SanDisk Ultra Fit 32GB $13
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