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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 9640,936 ▼

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

VS

Average Bench: 104% (156th of 976)

Based on 52,215 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 4.0% 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 296MB/s
Avg. 4K Random Mixed IO Speed 44.6MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 53.5%. 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 356MB/s
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Average Bench

(Based on 52,215 samples)
Rank 156104%
Min Avg Max
371 Read 476 515
214 Write 416 489
260 Mixed 342 388
121 SusWrite 356 481
89.2% 397 MB/s
Min Avg Max
24 4K Read 34.1 44.2
46.7 4K Write 93.4 129
28.7 4K Mixed 44.6 58.5
158% 57.4 MB/s
Min Avg Max
119 DQ Read 344 388
118 DQ Write 302 354
48.4 DQ Mixed 296 357
229% 314 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
83GB free (System drive)
Firmware: EXM02B6Q
SusWrite @10s intervals: 432 441 436 415 406 370 MB/s
109% Outstanding
Read 496
Write 473
Mixed 348
SusWrite 417
98% 433 MB/s
4K Read 33.6
4K Write 92.3
4K Mixed 44.4
157% 56.8 MB/s
DQ Read 380
DQ Write 285
DQ Mixed 349
256% 338 MB/s
142GB free (System drive)
Firmware: EXM02B6Q
SusWrite @10s intervals: 372 404 400 398 373 380 MB/s
103% Outstanding
Read 424
Write 411
Mixed 317
SusWrite 388
87% 385 MB/s
4K Read 29.8
4K Write 100
4K Mixed 41.8
152% 57.4 MB/s
DQ Read 366
DQ Write 329
DQ Mixed 315
245% 337 MB/s
110GB free (System drive)
Firmware: EXM0
SusWrite @10s intervals: 366 448 450 426 430 438 MB/s
95.8% Outstanding
Read 442
Write 200
Mixed 327
SusWrite 426
78% 349 MB/s
4K Read 30.2
4K Write 47.1
4K Mixed 37.5
119% 38.3 MB/s
DQ Read 386
DQ Write 280
DQ Mixed 313
239% 326 MB/s
34GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 214 169 151 139 130 137 MB/s
84.6% Excellent
Read 430
Write 352
Mixed 319
SusWrite 157
70% 314 MB/s
4K Read 33.6
4K Write 82.4
4K Mixed 44.9
152% 53.6 MB/s
DQ Read 331
DQ Write 140
DQ Mixed 216
165% 229 MB/s
52,215 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 10,290,782 SSDs tested.

 Prices

Approx. $232 @ launch in Jul '14
NeweggUS $1639 months
AmazonUS $20426 mins
EbayUS $22014 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 20,456 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 65%
Destroyer

Motherboard: Asus Z170 PRO GAMING - $157

CPU
Core i7-6700KIntel  $299Bench 88%, 220,456 samples9,070x
Core i5-6600KIntel  $233Bench 84%, 146,874 samples6,434x
Core i7-6700Intel  $304Bench 74%, 83,085 samples1,263x
GPU
GTX 1070Nvidia  $332Bench 98%, 392,909 samples4,108x
GTX 1080Nvidia  $470Bench 124%, 316,273 samples2,748x
GTX 970Nvidia  $200Bench 63%, 349,414 samples2,615x
SSD
850 Pro 256GBSamsung  $163Bench 104%, 52,215 samples1x
RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $125Bench 84%, 124,004 samples1,702x
Fury DDR4 2666 C15 2x8GBHyperX  $169Bench 84%, 13,971 samples1,064x
Fury DDR4 2133 C14 2x8GBHyperX  $186Bench 72%, 22,542 samples1,052x
EDIT WITH CUSTOM PC BUILDER Value: 93% - Outstanding Total price: $1,076

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.

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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.
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  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) December 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]

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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
4,596

Good (edit your comment) Add link

15 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
2,788

Good

6 months ago.

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

ITA-User
Avatar level
2,187

Good

20 days ago.

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

ESP-User
Avatar level
2,129

Poor

8 months ago.

Reliable and fast, really fast

AUS-User
Avatar level
2,076

Excellent

8 months ago.

Comment 

Line up challengers, I dare you—May '16

SRB-User
Avatar level
1,510

Excellent

9 months ago.

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

PAK-User
Avatar level
1,400

Excellent

2 months ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

CHL-User
Avatar level
1,354

Poor

18 months ago.

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

SSDrivePro
Avatar level
1,352

Outstanding

4 years ago.

ISR-User
Avatar level
1,344

Poor

18 months ago.

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

DNK-User
Avatar level
1,288

Poor

15 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

14 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

15 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

11 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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Age: 4 years

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 Samsung 860 Evo 250GB
vs SanDisk Extreme Pro 240GB
vs Crucial MX100 256GB

976 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 $332Samsung 850 Evo 250GB $63
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $98
Intel Core i5-8600K $243Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $72
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $830SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
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