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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 9841,047 ▼

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

VS

Average Bench: 106% (188th of 1011)

Based on 73,196 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: 77%Average: 106% Great: 126%

Popular builds with this SSD

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.

Strengths

Avg. 4K-64Thread Mixed IO Speed 294MB/s
Avg. 4K Random Mixed IO Speed 45.1MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 49.3%. 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 346MB/s
Avg. Sustained Write Speed 376MB/s
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Average Bench

(Based on 73,196 samples)
Rank 188106%
Min Avg Max
369 Read 476 517
279 Write 427 491
276 Mixed 346 384
143 SusWrite 376 486
91.3% 406 MB/s
Min Avg Max
24.8 4K Read 34.2 44
52.7 4K Write 95 128
30.7 4K Mixed 45.1 57.6
160% 58.1 MB/s
Min Avg Max
47.6 DQ Read 333 388
124 DQ Write 297 356
50.4 DQ Mixed 294 357
226% 308 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
119GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 421 421 429 430 434 430 MB/s
107% Outstanding
Read 509
Write 475
Mixed 378
SusWrite 427
101% 448 MB/s
4K Read 34.3
4K Write 91.6
4K Mixed 42.1
154% 56 MB/s
DQ Read 244
DQ Write 355
DQ Mixed 278
216% 292 MB/s
73,196 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 16,734,918 SSDs tested.

 Prices

Approx. $232 @ launch in Jul '14
EbayUS $19517 mins
AmazonUS $22029 mins
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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 29,588 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 58%
Gunboat

Motherboard: Asus Z170 PRO GAMING - $228

CPU
Core i7-6700KIntel  $269Bench 76%, 312,153 samples12,993x
Core i5-6600KIntel  $210Bench 69%, 208,241 samples9,404x
Core i7-6700Intel  $300Bench 66%, 113,273 samples1,859x
GPU
GTX 1070Nvidia  $400Bench 97%, 615,798 samples5,766x
GTX 1080Nvidia  $528Bench 124%, 540,220 samples3,790x
GTX 970Nvidia  $399Bench 63%, 464,715 samples3,593x
SSD
850 Pro 256GBSamsung  $195Bench 106%, 73,196 samples1x
RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $78Bench 85%, 226,966 samples2,365x
Fury DDR4 2666 C15 2x8GBHyperX  $169Bench 85%, 19,361 samples1,486x
Fury DDR4 2133 C14 2x8GBHyperX  $122Bench 73%, 32,251 samples1,482x
EDIT WITH CUSTOM PC BUILDER Value: 56% - Above average Total price: $1,170

Popular 850 Pro 256GB compatible motherboards:

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  • - CPU tests include: integer, floating and string.
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Solid State Drive Rankings (Price vs Performance) August 2019 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
5,494

Good (edit your comment) Add link

3 days 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
3,344

Good

1 month ago.

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

ITA-User
Avatar level
2,573

Poor

5 months ago.

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

ESP-User
Avatar level
2,497

Good

4 months ago.

Reliable and fast, really fast

AUS-User
Avatar level
2,416

Disliked

7 months ago.

Comment 

Line up challengers, I dare you—May '16

SRB-User
Avatar level
1,754

Excellent

17 months ago.

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

PAK-User
Avatar level
1,698

Excellent

5 months ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

CHL-User
Avatar level
1,640

Excellent

2 months ago.

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

ISR-User
Avatar level
1,478

Good

1 month ago.

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

DNK-User
Avatar level
1,470

Good

7 months ago.

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

SSDrivePro
Avatar level
1,352

Outstanding

4 years ago.

Sacagewea12
Avatar level
14

Outstanding

4 years ago.

10/10 perfect

jmythex
Avatar level
8

Excellent

22 months ago.

Pure Quality meets good Price. Love this SSD

caseyben
Avatar level
8

Good

3 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

4 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

2 years ago.

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

Jakoski
Avatar level
2

Excellent

23 months ago.

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

cmoparw
Avatar level
2

Excellent

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

1011 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
AMD Ryzen 5 3600 $198Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
Intel Core i5-9600K $230Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $233Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $195
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $78SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $695SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3200 C16 2x8GB $82SanDisk Extreme 16GB $24
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