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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 5441,215 ▼

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND. Release date: Q3 2014.

Average Bench: 102% (233rd of 1058)

Based on 111,630 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]

Poor: 72%Average: 102% Great: 123%

Popular builds with this SSD

Outstanding average bench

The Samsung 850 Pro 256GB averaged 2.4% 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.

Strengths

Avg. 4K-64Thread Mixed IO Speed 298MB/s
Avg. 4K Random Mixed IO Speed 43.4MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 50.2%. This is a relatively wide range which indicates that the Samsung 850 Pro 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 339MB/s
Avg. Sustained Write Speed 363MB/s
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Average Bench

(Based on 111,630 samples)
Rank 233102%
Min Avg Max
377 Read 474 516
210 Write 413 489
254 Mixed 339 384
139 SusWrite 363 484
89.1% 397 MB/s
Min Avg Max
23.7 4K Read 33.3 42.5
40.9 4K Write 87.9 119
28.4 4K Mixed 43.4 55.4
153% 54.9 MB/s
Min Avg Max
197 DQ Read 342 388
96.6 DQ Write 291 361
118 DQ Mixed 298 358
228% 310 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
46GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 482 482 481 487 470 305 MB/s
130% Outstanding
Read 492
Write 482
Mixed 349
SusWrite 451
100% 444 MB/s
4K Read 45.9
4K Write 127
4K Mixed 60.6
214% 77.7 MB/s
DQ Read 382
DQ Write 340
DQ Mixed 330
256% 351 MB/s
46GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 481 476 469 487 475 259 MB/s
127% Outstanding
Read 500
Write 457
Mixed 372
SusWrite 441
100% 442 MB/s
4K Read 45
4K Write 127
4K Mixed 60.9
213% 77.5 MB/s
DQ Read 382
DQ Write 247
DQ Mixed 332
243% 321 MB/s
111,630 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 44,172,487 SSDs tested.

 Prices

MSRP ≈ $232 @ launch in Jul '14
EbayUS $20518 mins
AmazonUS $2708 days
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Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money.

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical 850 Pro 256GB Builds (Compare 19,571 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 70%
Battleship
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 60%
Gunboat

Motherboard: Asus Z170 PRO GAMING - $295

CPU
Core i7-6700KIntel  $310Bench 83%, 526,268 samples8,939x
Core i5-6600KIntel  $199Bench 79%, 321,546 samples5,734x
Core i7-6700Intel  $350Bench 76%, 231,211 samples1,385x
GPU
GTX 1070Nvidia  $400Bench 80%, 1,127,629 samples3,405x
GTX 1060-6GBNvidia  $290Bench 57%, 1,201,235 samples1,996x
GTX 1080Nvidia  $450Bench 106%, 831,064 samples1,975x
SSD
850 Pro 256GBSamsung  $205Bench 102%, 111,630 samples1x
RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $94Bench 81%, 510,924 samples1,348x
Fury DDR4 2133 C14 2x8GBHyperX  $125Bench 72%, 55,625 samples852x
Vengeance LPX DDR4 3200 C16 2x8GBCorsair  $79Bench 85%, 449,640 samples793x
EDIT WITH CUSTOM PC BUILDER Value: 52% - Above average Total price: $1,304

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.

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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) June 2021 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

SSDrivePro
Avatar level
1,857

Official site www.samsung.com/...

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

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

Added 6 years ago.
USA-User
Avatar level
7,886

Excellent (edit your comment) Add link

5 months ago.

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

Comment 

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

Comment 

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

Comment 

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

Comment 

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

TUR-User
Avatar level
4,690

Good

19 months ago.

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

ITA-User
Avatar level
3,485

Poor

19 months ago.

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

AUS-User
Avatar level
3,228

Disliked

19 months ago.

Comment 

Line up challengers, I dare you—May '16

ESP-User
Avatar level
3,223

Good

20 months ago.

Reliable and fast, really fast

PAK-User
Avatar level
2,476

Excellent

2 years ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

SRB-User
Avatar level
2,310

Excellent

3 years ago.

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

CHL-User
Avatar level
2,298

Excellent

21 months ago.

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

ISR-User
Avatar level
1,940

Good

24 months ago.

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

SSDrivePro
Avatar level
1,857

Outstanding

6 years ago.

DNK-User
Avatar level
1,856

Good

2 years ago.

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

Viper207
Avatar level
442

Excellent

11 months ago.

the most resilient SSD

timmeulenbrug
Avatar level
18

Excellent

5 months ago.

For a 2014 released and bought SSD drive this still kicks ass in 2020. Its light weight, easy to mount, plug n play, ofcourse its SATA but above all, its still fast to this date!

Sacagewea12
Avatar level
14

Outstanding

5 years ago.

10/10 perfect

caseyben
Avatar level
10

Good

2 years 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.

jmythex
Avatar level
8

Excellent

3 years ago.

Pure Quality meets good Price. Love this SSD

deicer
Avatar level
2

Excellent

6 years ago.

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

kerti
Avatar level
2

Outstanding

5 years ago.

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

fahadysf
Avatar level
2

Outstanding

4 years ago.

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

Jakoski
Avatar level
2

Excellent

3 years ago.

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

cmoparw
Avatar level
2

Excellent

3 years ago.

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

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Age: 6 years

Speed Comparisons

vs Crucial MX500 250GB
vs Samsung 860 Evo 250GB
vs Samsung 870 Evo 250GB
vs HyperX Savage 240GB
vs Samsung 850 Evo 250GB
vs Crucial MX300 275GB
vs Crucial MX200 250GB
vs SanDisk Extreme Pro 240GB
vs Samsung 840 Pro 256GB

1058 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

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
What is queue depth?
Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-11400F $220Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11600K $259Nvidia RTX 3060-Ti $400Samsung 850 Evo 120GB $78
Intel Core i7-10700K $277Nvidia RTX 3080 $700Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $94SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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