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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 6041,200 ▼

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

Average Bench: 103% (197th of 1016)

Based on 85,349 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]

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Poor: 72%Average: 103% Great: 125%

Popular builds with this SSD

Outstanding average bench

The Samsung 850 Pro 256GB averaged 3.5% 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.

Strengths

Avg. 4K-64Thread Mixed IO Speed 293MB/s
Avg. 4K Random Mixed IO Speed 44.8MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 53.6%. 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 341MB/s
Avg. Sustained Write Speed 353MB/s
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Average Bench

(Based on 85,349 samples)
Rank 197103%
Min Avg Max
374 Read 475 516
197 Write 410 492
244 Mixed 341 389
127 SusWrite 353 484
88.6% 395 MB/s
Min Avg Max
23.6 4K Read 34.4 44.3
43.3 4K Write 92.9 129
27.9 4K Mixed 44.8 57.7
159% 57.4 MB/s
Min Avg Max
139 DQ Read 334 388
132 DQ Write 290 360
106 DQ Mixed 293 358
225% 306 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
101GB free
Firmware: EXM04B6Q
SusWrite @10s intervals: 351 328 432 433 451 405 MB/s
110% Outstanding
Read 438
Write 432
Mixed 340
SusWrite 400
91% 403 MB/s
4K Read 37.8
4K Write 82.4
4K Mixed 50.4
166% 56.9 MB/s
DQ Read 381
DQ Write 340
DQ Mixed 333
257% 351 MB/s
112GB free
Firmware: EXM04B6Q
SusWrite @10s intervals: 276 325 374 382 369 371 MB/s
108% Outstanding
Read 456
Write 432
Mixed 346
SusWrite 350
89% 396 MB/s
4K Read 35.8
4K Write 114
4K Mixed 46.4
174% 65.5 MB/s
DQ Read 353
DQ Write 308
DQ Mixed 305
236% 322 MB/s
90GB free (System drive)
Firmware: EXM02B6Q
SusWrite @10s intervals: 384 350 337 309 291 277 MB/s
104% Outstanding
Read 484
Write 410
Mixed 326
SusWrite 325
87% 386 MB/s
4K Read 29.5
4K Write 112
4K Mixed 43.7
160% 61.6 MB/s
DQ Read 378
DQ Write 342
DQ Mixed 343
262% 354 MB/s
85,349 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,626,442 SSDs tested.

 Prices

Approx. $232 @ launch in Jul '14
EbayUS $22412 mins
AmazonUS $2506 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 35,573 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 75%
Battleship
Desktop
Desktop 80%
Battleship
Workstation
Workstation 56%
Gunboat

Motherboard: Asus Z170 PRO GAMING - $228

CPU
Core i7-6700KIntel  $270Bench 81%, 330,548 samples15,674x
Core i5-6600KIntel  $175Bench 78%, 226,329 samples11,240x
Core i7-6700Intel  $299Bench 69%, 137,535 samples2,266x
GPU
GTX 1070Nvidia  $346Bench 79%, 759,017 samples6,861x
GTX 1080Nvidia  $540Bench 104%, 564,777 samples4,422x
GTX 970Nvidia  $428Bench 52%, 527,770 samples4,194x
SSD
850 Pro 256GBSamsung  $224Bench 103%, 85,349 samples1x
RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $63Bench 83%, 266,645 samples2,799x
Fury DDR4 2666 C15 2x8GBHyperX  $169Bench 84%, 25,321 samples1,772x
Fury DDR4 2133 C14 2x8GBHyperX  $125Bench 72%, 36,060 samples1,749x
EDIT WITH CUSTOM PC BUILDER Value: 55% - Above average Total price: $1,131

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.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) January 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

SSDrivePro
Avatar level
1,352

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 5 years ago.
USA-User
Avatar level
6,118

Poor (edit your comment) Add link

2 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
3,610

Good

2 months ago.

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

ITA-User
Avatar level
2,803

Poor

2 months ago.

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

ESP-User
Avatar level
2,691

Good

3 months ago.

Reliable and fast, really fast

AUS-User
Avatar level
2,582

Disliked

2 months ago.

Comment 

Line up challengers, I dare you—May '16

SRB-User
Avatar level
1,908

Excellent

22 months ago.

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

PAK-User
Avatar level
1,892

Excellent

10 months ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

CHL-User
Avatar level
1,792

Excellent

4 months ago.

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

ISR-User
Avatar level
1,578

Good

7 months ago.

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

DNK-User
Avatar level
1,556

Good

12 months ago.

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

SSDrivePro
Avatar level
1,352

Outstanding

5 years ago.

Sacagewea12
Avatar level
14

Outstanding

4 years ago.

10/10 perfect

jmythex
Avatar level
8

Excellent

2 years ago.

Pure Quality meets good Price. Love this SSD

caseyben
Avatar level
8

Good

8 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.

deicer
Avatar level
2

Excellent

5 years ago.

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

kerti
Avatar level
2

Outstanding

4 years ago.

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

fahadysf
Avatar level
2

Outstanding

3 years ago.

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

Jakoski
Avatar level
2

Excellent

2 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

2 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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Speed Comparisons

vs Crucial MX500 250GB
vs Samsung 860 Evo 250GB
vs Samsung 850 Evo 250GB
vs HyperX Savage 240GB
vs Crucial MX300 275GB
vs Crucial MX200 250GB
vs SanDisk Extreme Pro 240GB
vs Samsung 840 Pro 256GB
vs Crucial MX100 256GB

1016 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 i5-9600K $218Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $43
Intel Core i5-9400F $155Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $643SanDisk Ultra Fit 32GB $16
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