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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 9740,914 ▼

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

VS

Average Bench: 104% (142nd of 959)

Based on 51,731 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: 104% Great: 125%

Popular builds with this SSD

Outstanding average bench

The Samsung 850 Pro 256GB averaged 4.4% 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 306MB/s
Avg. 4K Random Mixed IO Speed 44.7MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 53.2%. 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 361MB/s
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Average Bench

(Based on 51,731 samples)
Rank 142104%
Min Avg Max
364 Read 472 516
257 Write 419 489
260 Mixed 341 384
142 SusWrite 361 479
89.5% 398 MB/s
Min Avg Max
21.9 4K Read 33.5 43.1
44.1 4K Write 93.8 128
28.6 4K Mixed 44.7 57.8
158% 57.3 MB/s
Min Avg Max
139 DQ Read 347 387
146 DQ Write 312 352
53.1 DQ Mixed 306 358
236% 322 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
151GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 408 400 391 371 355 337 MB/s
113% Outstanding
Read 450
Write 436
Mixed 344
SusWrite 377
90% 402 MB/s
4K Read 42.1
4K Write 110
4K Mixed 47.4
183% 66.4 MB/s
DQ Read 380
DQ Write 328
DQ Mixed 347
262% 352 MB/s
63GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 362 348 335 331 320 310 MB/s
105% Outstanding
Read 476
Write 462
Mixed 352
SusWrite 334
91% 406 MB/s
4K Read 33.4
4K Write 100
4K Mixed 44.8
161% 59.5 MB/s
DQ Read 359
DQ Write 329
DQ Mixed 327
250% 338 MB/s
204GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 457 443 445 444 448 447 MB/s
102% Outstanding
Read 462
Write 452
Mixed 351
SusWrite 447
96% 428 MB/s
4K Read 27.9
4K Write 65.3
4K Mixed 39
127% 44.1 MB/s
DQ Read 387
DQ Write 340
DQ Mixed 325
254% 351 MB/s
51,731 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 9,125,601 SSDs tested.

 Prices

Approx. $232 @ launch in Jul '14
NeweggUS $1638 months
AmazonUS $1891 min
EbayUS $19037 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 18,238 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 65%
Battle cruiser

Motherboard: Asus Z170 PRO GAMING - $157

CPU
Core i7-6700KIntel  $300Bench 89%, 230,495 samples8,069x
Core i5-6600KIntel  $238Bench 86%, 135,082 samples5,738x
Core i7-6700Intel  $316Bench 77%, 78,553 samples1,118x
GPU
GTX 1070Nvidia  $350Bench 99%, 373,199 samples3,689x
GTX 1080Nvidia  $450Bench 124%, 306,559 samples2,469x
GTX 970Nvidia  $207Bench 63%, 323,834 samples2,358x
SSD
850 Pro 256GBSamsung  $163Bench 104%, 51,731 samples1x
RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $140Bench 84%, 96,690 samples1,511x
Fury DDR4 2666 C15 2x8GBHyperX  $169Bench 84%, 14,099 samples936x
Fury DDR4 2133 C14 2x8GBHyperX  $186Bench 73%, 20,420 samples927x
EDIT WITH CUSTOM PC BUILDER Value: 91% - Outstanding Total price: $1,110

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.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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Solid State Drive Rankings (Price vs Performance) October 2018 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]

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
4,374

Good (edit your comment) Add link

12 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
2,664

Good

4 months ago.

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

ITA-User
Avatar level
2,079

Average

3 months ago.

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

ESP-User
Avatar level
2,009

Poor

7 months ago.

Reliable and fast, really fast

AUS-User
Avatar level
2,008

Excellent

6 months ago.

Comment 

Line up challengers, I dare you—May '16

SRB-User
Avatar level
1,442

Excellent

7 months ago.

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

SSDrivePro
Avatar level
1,352

Outstanding

3 years ago.

PAK-User
Avatar level
1,342

Excellent

12 days ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

ISR-User
Avatar level
1,310

Poor

16 months ago.

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

CHL-User
Avatar level
1,296

Poor

16 months ago.

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

DNK-User
Avatar level
1,238

Poor

13 months ago.

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

Sacagewea12
Avatar level
14

Outstanding

3 years ago.

10/10 perfect

jmythex
Avatar level
8

Excellent

12 months ago.

Pure Quality meets good Price. Love this SSD

deicer
Avatar level
2

Excellent

3 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

13 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

9 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 Crucial MX300 275GB
vs Crucial MX200 250GB
vs Crucial MX100 256GB
vs SanDisk Extreme Pro 240GB
vs Samsung 840 Pro 256GB

959 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 $370Nvidia GTX 1070 $350Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $98
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $157SanDisk Ultra Fit 32GB $12
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