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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 9740,868 ▼

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND

VS

Average Bench: 97.8% (111th of 929)

Based on 47,290 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: 70%Average: 97.8% Great: 121%

Popular builds with this SSD

Excellent average bench

The Samsung 850 Pro 256GB averaged just 2.2% lower 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 Random Read Speed 32.6MB/s
Avg. 4K Random Write Speed 87.9MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 850 Pro 256GB is 50.8%. This is a relatively wide range which indicates that the Samsung 850 Pro 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 192MB/s
Avg. 4K-64Thread Write Speed 212MB/s
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Average Bench

(Based on 47,290 samples)
Rank 11197.8%
Min Avg Max
378 Read 504 529
207 Write 434 502
264 Mixed 453 514
103% 464 MB/s
Min Avg Max
22.3 4K Read 32.6 42.5
47.1 4K Write 87.9 123
18.7 4K Mixed 33.7 49.7
139% 51.4 MB/s
Min Avg Max
27.9 DQ Read 192 374
78.7 DQ Write 212 338
18.4 DQ Mixed 83.4 158
95.5% 162 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
180GB free
Firmware: EXM04B6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
113% Outstanding
Read 514
Write 498
Mixed 497
112% 503 MB/s
4K Read 42.6
4K Write 116
4K Mixed 30.8
165% 63.2 MB/s
DQ Read 285
DQ Write 328
DQ Mixed 30.8
100% 215 MB/s
134GB free
Firmware: EXM04B6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
98.2% Outstanding
Read 517
Write 478
Mixed 414
105% 470 MB/s
4K Read 31.3
4K Write 58.1
4K Mixed 35.6
124% 41.7 MB/s
DQ Read 234
DQ Write 215
DQ Mixed 111
114% 186 MB/s
193GB free
Firmware: EXM04B6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
89.9% Excellent
Read 508
Write 500
Mixed 502
113% 504 MB/s
4K Read 33
4K Write 79.5
4K Mixed 23.9
123% 45.5 MB/s
DQ Read 32.7
DQ Write 84.8
DQ Mixed 20.5
27% 46 MB/s
135GB free
Firmware: EXM04B6Q
SYSTEM 4KALIGNED
88.6% Excellent
Read 520
Write 483
Mixed 502
112% 502 MB/s
4K Read 33.4
4K Write 81.1
4K Mixed 22.1
122% 45.5 MB/s
DQ Read 29.8
DQ Write 82.4
DQ Mixed 22.1
27% 44.8 MB/s
164GB free
Firmware: EXM02B6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
86% Excellent
Read 490
Write 449
Mixed 452
104% 464 MB/s
4K Read 22.6
4K Write 68.8
4K Mixed 21.3
98% 37.5 MB/s
DQ Read 177
DQ Write 258
DQ Mixed 12.9
67% 149 MB/s
47,290 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 7,227,843 SSDs tested.

 Prices

Approx. $232 @ launch in Jul '14
EbayUS $12519 mins
NeweggUS $1634 months
AmazonUS $16727 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 7,127 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 63%
Destroyer
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 59%
Gunboat

Motherboard: Asus MAXIMUS VII HERO

CPU
Core i7-4790KIntel  $352Bench 88%, 137,023 samples5,010x
Core i5-4690KIntel  $255Bench 83%, 82,023 samples910x
Core i7-4770KIntel  $458Bench 79%, 55,212 samples427x
GPU
GTX 970Nvidia  $370Bench 63%, 272,624 samples1,402x
GTX 1080Nvidia  $510Bench 125%, 228,550 samples731x
GTX 980Nvidia  $500Bench 75%, 60,512 samples678x
SSD
850 Pro 256GBSamsung  $125Bench 98%, 47,290 samples1x
RAM
TridentX DDR3 2400 C10 2x8GBG.SKILLBench 67%, 6,813 samples392x
Vengeance Pro DDR3 2400 C11 2x8GBCorsairBench 61%, 12,981 samples367x
Fury DDR3 1866 C10 2x8GBHyperXBench 58%, 32,153 samples229x
EDIT WITH CUSTOM PC BUILDER Value: 74% - Very good Total price: $847

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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  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
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Solid State Drive Rankings (Price vs Performance) June 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.

 Comments

SSDrivePro
Avatar level
1,350

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 3 years ago.
USA-User
Avatar level
3,854

Excellent (edit your comment) Add link

7 days ago.

i got this on sale for only a 120 bucks last year with the mounting kit. It is by far the best upgrade anyone can do

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

RUS-User
Avatar level
2,554

Excellent

12 days ago.

Лучший

TUR-User
Avatar level
2,456

Good

12 days ago.

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

ITA-User
Avatar level
1,923

Average

1 hr ago.

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

ESP-User
Avatar level
1,839

Poor

3 months ago.

Reliable and fast, really fast

AUS-User
Avatar level
1,826

Excellent

2 months ago.

Comment 

Line up challengers, I dare you—May '16

SSDrivePro
Avatar level
1,350

Outstanding

3 years ago.

SRB-User
Avatar level
1,330

Excellent

3 months ago.

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

ISR-User
Avatar level
1,238

Poor

12 months ago.

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

PAK-User
Avatar level
1,188

Disliked

11 months ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

DNK-User
Avatar level
1,158

Poor

9 months ago.

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

CHL-User
Avatar level
1,158

Poor

13 months ago.

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

Sacagewea12
Avatar level
14

Outstanding

2 years ago.

10/10 perfect

jmythex
Avatar level
8

Excellent

9 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

2 years ago.

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

fahadysf
Avatar level
2

Outstanding

21 months ago.

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

Jakoski
Avatar level
2

Excellent

9 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

6 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 Crucial MX200 250GB
vs Crucial MX300 275GB
vs HyperX Savage 240GB
vs SanDisk Ultra II 240GB
vs Crucial MX100 256GB
vs SanDisk Extreme Pro 240GB

929 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’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?
What is 4K random write speed?
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 $317Nvidia GTX 1070 $413Samsung 850 Evo 250GB $104
AMD Ryzen 5 1600 $160Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $125
Intel Core i5-8600K $239AMD RX 480 $280Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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