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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 5441,222 ▼

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

Average Bench: 102% (248th of 1072)

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 248102%
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%
81GB free
Firmware: EXM04B6Q
SusWrite @10s intervals: 452 464 467 467 462 462 MB/s
116% Outstanding
Read 480
Write 468
Mixed 381
SusWrite 462
101% 448 MB/s
4K Read 34.2
4K Write 112
4K Mixed 47
171% 64.3 MB/s
DQ Read 369
DQ Write 319
DQ Mixed 335
254% 341 MB/s
238GB free
Firmware: EXM02B6Q
SusWrite @10s intervals: 468 469 468 461 464 460 MB/s
108% Outstanding
Read 475
Write 454
Mixed 376
SusWrite 465
100% 442 MB/s
4K Read 31.7
4K Write 80.4
4K Mixed 42.2
145% 51.4 MB/s
DQ Read 375
DQ Write 319
DQ Mixed 334
254% 343 MB/s
77GB free
Firmware: EXM04B6Q
SusWrite @10s intervals: 403 403 404 404 405 404 MB/s
100% Outstanding
Read 372
Write 406
Mixed 331
SusWrite 404
85% 378 MB/s
4K Read 33.8
4K Write 96
4K Mixed 46.5
162% 58.8 MB/s
DQ Read 256
DQ Write 210
DQ Mixed 228
172% 231 MB/s
40GB free
Firmware: EXM02B6Q
SusWrite @10s intervals: 438 249 208 208 206 196 MB/s
96.8% Outstanding
Read 508
Write 474
Mixed 370
SusWrite 251
90% 401 MB/s
4K Read 32.2
4K Write 81.8
4K Mixed 42.2
146% 52.1 MB/s
DQ Read 377
DQ Write 337
DQ Mixed 342
261% 352 MB/s
44GB free (System drive)
Firmware: EXM04B6Q
SusWrite @10s intervals: 210 181 164 149 149 149 MB/s
94.2% Outstanding
Read 483
Write 320
Mixed 318
SusWrite 167
72% 322 MB/s
4K Read 32.7
4K Write 99.5
4K Mixed 44.9
160% 59 MB/s
DQ Read 372
DQ Write 314
DQ Mixed 332
252% 340 MB/s
83GB free (System drive)
Firmware: EXM02B6Q
SusWrite @10s intervals: 161 103 87 87 115 124 MB/s
50.3% Above average
Read 362
Write 71.4
Mixed 178
SusWrite 113
40% 181 MB/s
4K Read 20.5
4K Write 27.9
4K Mixed 21.2
73% 23.2 MB/s
DQ Read 149
DQ Write 135
DQ Mixed 145
108% 143 MB/s
141,929 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,633,254 SSDs tested

 Prices

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MSRP ≈ $232 @ launch in Jul '14
EbayUS $11522 mins
AmazonUS $1554 days
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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 13,890 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  $180Bench 81%, 588,978 samples6,614x
Core i5-6600KIntel  $81Bench 72%, 342,244 samples3,671x
Core i7-6700Intel  $180Bench 72%, 282,363 samples1,043x
GPU
GTX 1070Nvidia  $132Bench 80%, 1,459,281 samples2,164x
GTX 1060-6GBNvidia  $117Bench 56%, 1,368,019 samples1,381x
GTX 1080Nvidia  $400Bench 102%, 1,082,454 samples1,247x
SSD
850 Pro 256GBSamsung  $115Bench 102%, 141,929 samples1x
RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair  $43Bench 82%, 606,405 samples806x
Vengeance LPX DDR4 3200 C16 2x8GBCorsair  $40Bench 85%, 653,654 samples565x
Fury DDR4 2133 C14 2x8GBHyperX  $125Bench 73%, 59,072 samples559x
EDIT WITH CUSTOM PC BUILDER Value: 92% - Outstanding Total price: $765

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 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 value for money 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
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
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  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware
Solid State Drive Rankings (Price vs Performance) April 2024 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
1,859

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 9 years ago.
USA-User
Avatar level
9,832

Good (edit your comment) Add link

21 months 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
5,522

Good

12 months ago.

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

ITA-User
Avatar level
4,065

Poor

4 years ago.

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

AUS-User
Avatar level
3,948

Liked

1 month ago.

Comment 

Line up challengers, I dare you—May '16

ESP-User
Avatar level
3,729

Good

4 years ago.

Reliable and fast, really fast

PAK-User
Avatar level
3,296

Excellent

5 years ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

SRB-User
Avatar level
2,778

Excellent

6 years ago.

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

CHL-User
Avatar level
2,590

Excellent

4 years ago.

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

ISR-User
Avatar level
2,338

Good

11 months ago.

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

DNK-User
Avatar level
2,212

Good

5 years ago.

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

SSDrivePro
Avatar level
1,859

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

8 years ago.

10/10 perfect

caseyben
Avatar level
10

Good

4 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

8 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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Ready to retire
Age: 9 years

Speed Comparisons

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

1072 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 i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $132Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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