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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 5441,223 ▼

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

Average Bench: 102% (256th of 1080)

Based on 141,929 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: 71%Average: 102% Great: 124%

Popular builds with this SSD

Outstanding average bench

The Samsung 850 Pro 256GB averaged 1.8% 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 295MB/s
Avg. 4K Random Mixed IO Speed 44.1MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 52.8%. 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 334MB/s
Avg. Sustained Write Speed 346MB/s
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Average Bench

(Based on 141,929 samples)
Rank 256102%
Min Avg Max
350 Read 469 515
128 Write 396 488
221 Mixed 334 383
99.6 SusWrite 346 484
86.6% 386 MB/s
Min Avg Max
23.2 4K Read 33.9 43.6
41.5 4K Write 89.6 125
27.9 4K Mixed 44.1 56.7
155% 55.9 MB/s
Min Avg Max
217 DQ Read 344 388
112 DQ Write 282 361
138 DQ Mixed 295 356
226% 307 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
186GB free
Firmware: EXM04B6Q
SusWrite @10s intervals: 471 476 476 477 478 478 MB/s
110% Outstanding
Read 493
Write 424
Mixed 350
SusWrite 476
98% 436 MB/s
4K Read 32.2
4K Write 80.3
4K Mixed 42.5
146% 51.7 MB/s
DQ Read 379
DQ Write 338
DQ Mixed 346
263% 354 MB/s
150GB free
Firmware: EXM04B6Q
SusWrite @10s intervals: 443 451 450 448 452 451 MB/s
108% Outstanding
Read 484
Write 447
Mixed 396
SusWrite 449
100% 444 MB/s
4K Read 31.7
4K Write 83.1
4K Mixed 41.7
146% 52.2 MB/s
DQ Read 378
DQ Write 335
DQ Mixed 348
263% 354 MB/s
48GB free
Firmware: EXM04B6Q
SusWrite @10s intervals: 447 446 445 443 441 443 MB/s
97.4% Outstanding
Read 480
Write 428
Mixed 378
SusWrite 444
97% 433 MB/s
4K Read 25.5
4K Write 53.9
4K Mixed 34
111% 37.8 MB/s
DQ Read 390
DQ Write 353
DQ Mixed 363
275% 369 MB/s
141GB free
Firmware: EXM02B6Q
SusWrite @10s intervals: 426 438 442 443 447 442 MB/s
93.8% Outstanding
Read 500
Write 452
Mixed 357
SusWrite 440
98% 437 MB/s
4K Read 30.4
4K Write 44.1
4K Mixed 33.1
112% 35.9 MB/s
DQ Read 389
DQ Write 160
DQ Mixed 279
206% 276 MB/s
141,929 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,509,235 SSDs tested

 Prices

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MSRP ≈ $232 @ launch in Jul '14
AmazonUS $11211 mins
EbayUS $1801 min
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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 14,248 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 69%
Battle cruiser
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 58%
Gunboat

Motherboard: Asus Z170 PRO GAMING - $295

CPU
Core i7-6700KIntel  $170Bench 81%, 588,978 samples6,794x
Core i5-6600KIntel  $120Bench 72%, 342,244 samples3,755x
Core i7-6700Intel  $170Bench 72%, 282,363 samples1,068x
GPU
GTX 1070Nvidia  $278Bench 80%, 1,459,281 samples2,223x
GTX 1060-6GBNvidia  $117Bench 56%, 1,368,019 samples1,406x
GTX 1080Nvidia  $195Bench 102%, 1,082,454 samples1,277x
SSD
850 Pro 256GBSamsung  $112Bench 102%, 141,929 samples1x
RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $43Bench 82%, 606,405 samples830x
Vengeance LPX DDR4 3200 C16 2x8GBCorsair  $39Bench 85%, 653,654 samples584x
Fury DDR4 2133 C14 2x8GBHyperX  $125Bench 73%, 59,072 samples567x
EDIT WITH CUSTOM PC BUILDER Value: 71% - Very good Total price: $899

Popular 850 Pro 256GB compatible motherboards:

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Solid State Drive Rankings (Price vs Performance) July 2024 SSD Rankings

Welcome to our 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
1,921

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 10 years ago.
USA-User
Avatar level
9,918

Good (edit your comment) Add link

2 years 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
5,548

Good

15 months ago.

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

ITA-User
Avatar level
4,101

Poor

4 years ago.

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

AUS-User
Avatar level
3,998

Liked

4 months ago.

Comment 

Line up challengers, I dare you—May '16

ESP-User
Avatar level
3,765

Good

4 years ago.

Reliable and fast, really fast

PAK-User
Avatar level
3,380

Excellent

5 years ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

SRB-User
Avatar level
2,820

Excellent

6 years ago.

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

CHL-User
Avatar level
2,612

Excellent

4 years ago.

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

ISR-User
Avatar level
2,366

Good

15 months ago.

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

DNK-User
Avatar level
2,226

Good

5 years ago.

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

SSDrivePro
Avatar level
1,921

Outstanding

9 years ago.

timmeulenbrug
Avatar level
18

Excellent

3 years 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

9 years ago.

10/10 perfect

caseyben
Avatar level
10

Good

5 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

6 years ago.

Pure Quality meets good Price. Love this SSD

deicer
Avatar level
2

Excellent

9 years ago.

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

kerti
Avatar level
2

Outstanding

9 years ago.

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

fahadysf
Avatar level
2

Outstanding

7 years ago.

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

Jakoski
Avatar level
2

Excellent

6 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

6 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: 10 years

Speed Comparisons

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

1080 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 »

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