Average Bench: 105% (141st of 956)

Based on 46,321 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 5.5% 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 303MB/s
Avg. 4K Random Mixed IO Speed 45.3MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 48.6%. 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 340MB/s
Avg. Sustained Write Speed 364MB/s

Average Bench

(Based on 46,321 samples)
Min Avg Max
361 Read 475 517
233 Write 417 490
247 Mixed 340 382
132 SusWrite 364 480
89.6% 399 MB/s
Min Avg Max
23.2 4K Read 34.1 44.5
48 4K Write 97 130
29.3 4K Mixed 45.3 58.5
161% 58.8 MB/s
Min Avg Max
45 DQ Read 344 388
127 DQ Write 305 354
54.6 DQ Mixed 303 358
233% 318 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
133GB free
Firmware: EXM04B6Q
SusWrite @10s intervals: 477 467 482 452 452 461 MB/s
Read 449
Write 435
Mixed 341
SusWrite 465
95% 422 MB/s
4K Read 35
4K Write 113
4K Mixed 57.8
187% 68.6 MB/s
DQ Read 364
DQ Write 317
DQ Mixed 321
246% 334 MB/s
188GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 432 462 432 462 461 458 MB/s
Read 510
Write 412
Mixed 377
SusWrite 451
98% 438 MB/s
4K Read 34.7
4K Write 95.1
4K Mixed 46
162% 58.6 MB/s
DQ Read 390
DQ Write 353
DQ Mixed 352
269% 365 MB/s
188GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 390 453 467 468 464 472 MB/s
Read 513
Write 488
Mixed 384
SusWrite 452
103% 459 MB/s
4K Read 34.9
4K Write 93.5
4K Mixed 45.5
161% 58 MB/s
DQ Read 380
DQ Write 337
DQ Mixed 339
259% 352 MB/s
25GB free (System drive)
Firmware: EXM03B6Q
SusWrite @10s intervals: 92 85 81 85 75 77 MB/s
Read 488
Write 180
Mixed 273
SusWrite 82.4
56% 256 MB/s
4K Read 34.8
4K Write 98.2
4K Mixed 45.9
164% 59.6 MB/s
DQ Read 375
DQ Write 196
DQ Mixed 243
192% 271 MB/s
46,321 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 8,547,132 SSDs tested.


Approx. $232 @ launch in Jul '14
AmazonUS $1359 mins
NeweggUS $1636 months
EbayUS $17444 mins
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Typical 850 Pro 256GB Builds (Compare 23,954 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 86%
Aircraft carrier
Workstation 66%
Battle cruiser

Motherboard: Asus Z170 PRO GAMING - $157

EDIT WITH CUSTOM PC BUILDER Value: 91% - Outstanding Total price: $1,128

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 2018 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 4 years ago.

Good (edit your comment) Add link

1 month ago.

i got this on sale for only a 120 bucks last year with the mounting kit. It is by far the best upgrade anyone can do


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


3 months ago.

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


2 months ago.

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


6 months ago.

Reliable and fast, really fast


5 months ago.


Line up challengers, I dare you—May '16


6 months ago.

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


3 years ago.


14 months ago.


Excellent drive very consistent and blazingly fast —Mar '15


15 months ago.

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


15 months ago.

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


12 months ago.

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


3 years ago.

10/10 perfect


11 months ago.

Pure Quality meets good Price. Love this SSD


3 years ago.

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


3 years ago.

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


2 years ago.

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


12 months ago.

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


8 months ago.

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

956 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 i7-8700K $370Nvidia GTX 1070 $344Samsung 850 Evo 250GB $86
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $114
Intel Core i5-8600K $230AMD RX 480 $280Samsung 850 Pro 256GB $135
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $150SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $899SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3200 C16 2x8GB $160SanDisk Ultra Fit 32GB $11
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