TEST
YOUR SSD
ADD TO PC
BUILD

Samsung MZ-7KE256BW

850 Pro 256GB

▲ 6241,209 ▼

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

Average Bench: 102% (215th of 1037)

Based on 96,221 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: 74%Average: 102% Great: 124%

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 307MB/s
Avg. 4K Random Mixed IO Speed 43.7MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 50%. 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 352MB/s
ADVERTISEMENT

Average Bench

(Based on 96,221 samples)
Rank 215102%
Min Avg Max
365 Read 473 516
176 Write 410 489
257 Mixed 339 382
127 SusWrite 352 484
88.3% 393 MB/s
Min Avg Max
23.1 4K Read 33.1 43.2
46.1 4K Write 90.2 122
27.9 4K Mixed 43.7 57.1
154% 55.7 MB/s
Min Avg Max
160 DQ Read 346 388
119 DQ Write 300 360
134 DQ Mixed 307 358
234% 318 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
92GB free
Firmware: EXM04B6Q
SusWrite @10s intervals: 361 390 461 471 475 475 MB/s
124% Outstanding
Read 493
Write 481
Mixed 369
SusWrite 439
100% 446 MB/s
4K Read 42.4
4K Write 114
4K Mixed 56.2
196% 70.8 MB/s
DQ Read 381
DQ Write 347
DQ Mixed 340
262% 356 MB/s
98GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 348 331 325 318 314 315 MB/s
107% Outstanding
Read 510
Write 462
Mixed 358
SusWrite 325
93% 414 MB/s
4K Read 29.4
4K Write 105
4K Mixed 47.7
162% 60.8 MB/s
DQ Read 380
DQ Write 338
DQ Mixed 342
261% 353 MB/s
96,221 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,537,142 SSDs tested.

 Prices

Approx. $232 @ launch in Jul '14
AmazonUS $1603 months
EbayUS $29521 mins
Send price feedback
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 9,857 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 70%
Battle cruiser
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 59%
Gunboat

Motherboard: Asus Z170 PRO GAMING - $228

CPU
Core i7-6700KIntel  $278Bench 84%, 437,946 samples4,425x
Core i5-6600KIntel  $189Bench 80%, 282,785 samples2,960x
Core i7-6700Intel  $279Bench 76%, 188,819 samples709x
GPU
GTX 1070Nvidia  $415Bench 78%, 913,064 samples1,727x
GTX 1080Nvidia  $540Bench 102%, 770,090 samples1,021x
GTX 1060-6GBNvidia  $267Bench 57%, 1,036,779 samples995x
SSD
850 Pro 256GBSamsung  $160Bench 102%, 96,221 samples1x
RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $65Bench 83%, 388,993 samples670x
Fury DDR4 2133 C14 2x8GBHyperX  $125Bench 73%, 44,138 samples436x
Fury DDR4 2666 C15 2x8GBHyperX  $169Bench 84%, 27,189 samples406x
EDIT WITH CUSTOM PC BUILDER Value: 55% - Above average Total price: $1,146

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

Gaming Desktop ProGaming

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 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]

ADVERTISEMENT

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
1,854

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
6,890

Poor (edit your comment) Add link

10 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
4,126

Good

10 months ago.

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

ITA-User
Avatar level
3,145

Poor

10 months ago.

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

ESP-User
Avatar level
2,969

Good

11 months ago.

Reliable and fast, really fast

AUS-User
Avatar level
2,928

Disliked

10 months ago.

Comment 

Line up challengers, I dare you—May '16

PAK-User
Avatar level
2,150

Excellent

18 months ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

CHL-User
Avatar level
2,114

Excellent

12 months ago.

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

SRB-User
Avatar level
2,106

Excellent

2 years ago.

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

SSDrivePro
Avatar level
1,854

Outstanding

5 years ago.

ISR-User
Avatar level
1,742

Good

15 months ago.

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

DNK-User
Avatar level
1,702

Good

20 months ago.

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

Viper207
Avatar level
362

Excellent

2 months ago.

the most resilient SSD

Sacagewea12
Avatar level
14

Outstanding

5 years ago.

10/10 perfect

caseyben
Avatar level
10

Good

17 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.

jmythex
Avatar level
8

Excellent

2 years ago.

Pure Quality meets good Price. Love this SSD

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

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

2 years ago.

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

Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 6 years

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

1037 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 $193Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $43
Intel Core i5-9400F $140Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $300Nvidia RTX 2070S (Super) $500Samsung 860 Evo 250GB $42
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $66SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback