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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 9540,979 ▼

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

VS

Average Bench: 104% (171st of 992)

Based on 65,345 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: 68%Average: 104% Great: 125%

Popular builds with this SSD

Outstanding average bench

The Samsung 850 Pro 256GB averaged 3.7% 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 307MB/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 57.4%. 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 337MB/s
Avg. Sustained Write Speed 352MB/s
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Average Bench

(Based on 65,345 samples)
Rank 171104%
Min Avg Max
356 Read 470 515
208 Write 408 487
252 Mixed 337 384
126 SusWrite 352 481
87.9% 392 MB/s
Min Avg Max
22.6 4K Read 33.9 43.5
44 4K Write 93.8 130
28.2 4K Mixed 44.7 57.3
158% 57.5 MB/s
Min Avg Max
160 DQ Read 347 388
120 DQ Write 303 355
126 DQ Mixed 307 358
235% 319 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
153GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 477 485 484 487 488 475 MB/s
116% Outstanding
Read 505
Write 480
Mixed 369
SusWrite 483
103% 459 MB/s
4K Read 35.8
4K Write 103
4K Mixed 46.9
169% 61.9 MB/s
DQ Read 309
DQ Write 307
DQ Mixed 355
254% 324 MB/s
191GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 397 472 469 484 484 485 MB/s
113% Outstanding
Read 510
Write 482
Mixed 368
SusWrite 465
103% 456 MB/s
4K Read 33.6
4K Write 88.8
4K Mixed 45.6
156% 56 MB/s
DQ Read 377
DQ Write 331
DQ Mixed 348
262% 352 MB/s
163GB free (System drive)
Firmware: EXM02B6Q
SusWrite @10s intervals: 360 369 378 399 412 396 MB/s
95% Outstanding
Read 492
Write 393
Mixed 330
SusWrite 386
90% 400 MB/s
4K Read 29.8
4K Write 68.9
4K Mixed 37.4
130% 45.4 MB/s
DQ Read 283
DQ Write 238
DQ Mixed 258
194% 260 MB/s
65,345 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 13,030,033 SSDs tested.

 Prices

Approx. $232 @ launch in Jul '14
EbayUS $979 mins
NeweggUS $16313 months
AmazonUS $20021 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 24,861 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 65%
Destroyer

Motherboard: Asus Z170 PRO GAMING - $157

CPU
Core i7-6700KIntel  $302Bench 89%, 286,508 samples10,931x
Core i5-6600KIntel  $238Bench 84%, 178,572 samples7,884x
Core i7-6700Intel  $312Bench 76%, 98,864 samples1,529x
GPU
GTX 1070Nvidia  $370Bench 98%, 526,975 samples4,907x
GTX 1080Nvidia  $528Bench 124%, 407,741 samples3,257x
GTX 970Nvidia  $374Bench 63%, 434,663 samples3,096x
SSD
850 Pro 256GBSamsung  $97Bench 104%, 65,345 samples1x
RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $105Bench 87%, 171,284 samples2,011x
Fury DDR4 2666 C15 2x8GBHyperX  $169Bench 84%, 17,458 samples1,283x
Fury DDR4 2133 C14 2x8GBHyperX  $122Bench 74%, 28,265 samples1,280x
EDIT WITH CUSTOM PC BUILDER Value: 98% - Outstanding Total price: $1,031

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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  • - 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.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - 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) March 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
5,000

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
3,052

Good

9 months ago.

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

ITA-User
Avatar level
2,357

Poor

24 days ago.

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

ESP-User
Avatar level
2,277

Good

1 day ago.

Reliable and fast, really fast

AUS-User
Avatar level
2,174

Disliked

3 months ago.

Comment 

Line up challengers, I dare you—May '16

SRB-User
Avatar level
1,632

Excellent

12 months ago.

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

PAK-User
Avatar level
1,550

Excellent

8 days ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

CHL-User
Avatar level
1,470

Good

3 months ago.

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

ISR-User
Avatar level
1,386

Poor

21 months ago.

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

DNK-User
Avatar level
1,360

Good

2 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

18 months ago.

Pure Quality meets good Price. Love this SSD

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

18 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

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

992 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 $370Samsung 850 Evo 250GB $75
AMD Ryzen 5 1600 $122Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $105
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $105SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $716SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $110SanDisk Ultra Fit 32GB $12
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