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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 9941,006 ▼

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

VS

Average Bench: 105% (176th of 1000)

Based on 61,582 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: 105% Great: 126%

Popular builds with this SSD

Outstanding average bench

The Samsung 850 Pro 256GB averaged 5.0% 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 304MB/s
Avg. 4K Random Mixed IO Speed 44.9MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 54.1%. 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 342MB/s
Avg. Sustained Write Speed 365MB/s
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Average Bench

(Based on 61,582 samples)
Rank 176105%
Min Avg Max
370 Read 474 515
239 Write 422 491
264 Mixed 342 384
125 SusWrite 365 486
90% 401 MB/s
Min Avg Max
24.2 4K Read 34 44.4
46.1 4K Write 95.1 130
29.5 4K Mixed 44.9 59.2
159% 58 MB/s
Min Avg Max
128 DQ Read 345 388
121 DQ Write 304 358
79.4 DQ Mixed 304 357
233% 318 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
87GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 400 384 403 353 271 257 MB/s
100% Outstanding
Read 486
Write 444
Mixed 356
SusWrite 344
92% 408 MB/s
4K Read 37.3
4K Write 75.1
4K Mixed 45.8
155% 52.7 MB/s
DQ Read 274
DQ Write 239
DQ Mixed 245
187% 253 MB/s
93GB free
Firmware: EXM04B6Q
SusWrite @10s intervals: 379 384 384 388 388 389 MB/s
96.4% Outstanding
Read 353
Write 376
Mixed 304
SusWrite 386
80% 354 MB/s
4K Read 32.9
4K Write 84
4K Mixed 45.2
152% 54 MB/s
DQ Read 275
DQ Write 232
DQ Mixed 247
187% 251 MB/s
48GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 446 447 456 443 419 345 MB/s
93.6% Outstanding
Read 477
Write 467
Mixed 360
SusWrite 426
97% 432 MB/s
4K Read 30.6
4K Write 51.5
4K Mixed 36.9
121% 39.7 MB/s
DQ Read 249
DQ Write 232
DQ Mixed 240
180% 240 MB/s
61,582 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 14,374,785 SSDs tested.

 Prices

Approx. $232 @ launch in Jul '14
NeweggUS $16315 months
AmazonUS $20928 mins
EbayUS $24215 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.

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CPU GPU SSD HDD RAM MBD
Typical 850 Pro 256GB Builds (Compare 26,681 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 64%
Destroyer

Motherboard: Asus Z170 PRO GAMING - $157

CPU
Core i7-6700KIntel  $290Bench 88%, 295,422 samples11,709x
Core i5-6600KIntel  $235Bench 84%, 181,471 samples8,501x
Core i7-6700Intel  $303Bench 77%, 110,649 samples1,651x
GPU
GTX 1070Nvidia  $314Bench 98%, 573,744 samples5,226x
GTX 1080Nvidia  $528Bench 123%, 449,288 samples3,471x
GTX 970Nvidia  $374Bench 63%, 433,580 samples3,287x
SSD
850 Pro 256GBSamsung  $163Bench 105%, 61,582 samples1x
RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $90Bench 86%, 166,861 samples2,166x
Fury DDR4 2666 C15 2x8GBHyperX  $169Bench 86%, 15,563 samples1,361x
Fury DDR4 2133 C14 2x8GBHyperX  $122Bench 73%, 27,349 samples1,353x
EDIT WITH CUSTOM PC BUILDER Value: 98% - Outstanding Total price: $1,014

Popular 850 Pro 256GB compatible motherboards:

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  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
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Solid State Drive Rankings (Price vs Performance) May 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 4 years ago.
USA-User
Avatar level
5,178

Excellent (edit your comment) Add link

9 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
3,162

Good

11 months ago.

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

ITA-User
Avatar level
2,447

Poor

2 months ago.

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

ESP-User
Avatar level
2,355

Good

2 month ago.

Reliable and fast, really fast

AUS-User
Avatar level
2,252

Disliked

5 months ago.

Comment 

Line up challengers, I dare you—May '16

SRB-User
Avatar level
1,674

Excellent

14 months ago.

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

PAK-User
Avatar level
1,600

Excellent

2 months ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

CHL-User
Avatar level
1,520

Good

5 months ago.

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

ISR-User
Avatar level
1,412

Poor

23 months ago.

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

DNK-User
Avatar level
1,388

Good

4 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

3 years ago.

10/10 perfect

jmythex
Avatar level
8

Excellent

20 months ago.

Pure Quality meets good Price. Love this SSD

caseyben
Avatar level
6

Good

20 days 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

3 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

20 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

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

1000 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 i7-8700K $356Nvidia GTX 1070 $314Samsung 850 Evo 250GB $92
AMD Ryzen 5 2600 $145Nvidia GTX 1060-6GB $208Samsung 850 Evo 500GB $99
AMD Ryzen 5 1600 $108Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $90SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $651SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $73Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
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