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Samsung MZ-7KE256BW

850 Pro 256GB

▲ 9640,628 ▼

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

VS

Average Bench: 100% (58th of 857)

Based on 24,757 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: 100% Great: 123%

Popular builds with this SSD

Outstanding average bench

The Samsung 850 Pro 256GB averaged 0.1% 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 Random Read Speed 33.4MB/s
Avg. 4K Random Write Speed 90.7MB/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. 4K-64Thread Read Speed 209MB/s
Avg. 4K-64Thread Write Speed 222MB/s
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Average Bench

(Based on 24,757 samples)
Rank 58100%
Min Avg Max
382 Read 504 529
227 Write 443 503
290 Mixed 462 514
105% 470 MB/s
Min Avg Max
23.6 4K Read 33.4 43.1
45.5 4K Write 90.7 131
18.4 4K Mixed 34.4 50.5
143% 52.9 MB/s
Min Avg Max
27.7 DQ Read 209 381
66.1 DQ Write 222 343
18.2 DQ Mixed 88.4 165
102% 173 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
29GB free
Firmware: EXM04B6Q Max speed: SATA 3.0 600 MB/s
NCQ 4KALIGNED SSD TRIM S.M.A.R.T
121% Outstanding
Read 528
Write 486
Mixed 510
114% 508 MB/s
4K Read 37.9
4K Write 109
4K Mixed 48.3
177% 65 MB/s
DQ Read 382
DQ Write 331
DQ Mixed 172
180% 295 MB/s
178GB free
Firmware: EXM04B6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
114% Outstanding
Read 506
Write 499
Mixed 508
113% 504 MB/s
4K Read 39.6
4K Write 82.9
4K Mixed 48
165% 56.8 MB/s
DQ Read 323
DQ Write 221
DQ Mixed 126
134% 223 MB/s
212GB free
Firmware: EXM04B6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
112% Outstanding
Read 513
Write 499
Mixed 503
113% 505 MB/s
4K Read 43.4
4K Write 120
4K Mixed 36.5
176% 66.6 MB/s
DQ Read 43.8
DQ Write 330
DQ Mixed 81.6
94% 152 MB/s
79GB free
Firmware: EXM02B6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
102% Outstanding
Read 528
Write 496
Mixed 514
114% 513 MB/s
4K Read 27
4K Write 49.2
4K Mixed 35
112% 37.1 MB/s
DQ Read 349
DQ Write 332
DQ Mixed 117
149% 266 MB/s
173GB free
Firmware: EXM04B6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
96.4% Outstanding
Read 511
Write 485
Mixed 481
110% 492 MB/s
4K Read 31.4
4K Write 69.2
4K Mixed 36.5
131% 45.7 MB/s
DQ Read 137
DQ Write 126
DQ Mixed 66.7
68% 110 MB/s
115GB free
Firmware: EXM04B6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
77.1% Very good
Read 506
Write 469
Mixed 487
109% 487 MB/s
4K Read 23.6
4K Write 33
4K Mixed 19.4
78% 25.4 MB/s
DQ Read 121
DQ Write 81.6
DQ Mixed 62.4
57% 88.4 MB/s
24,757 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,531,581 SSDs tested.

 Prices

EbayUS $126.0422 secs ago.
AmazonUS $132.749 mins ago.
NeweggUS $134.892 hrs ago.
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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 5,334 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 64%
Destroyer
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 59%
Gunboat

Motherboard: Asus MAXIMUS VII HERO

CPU
Core i7-4790KIntel  $339Bench 87%, 99,324 samples3,752x
Core i5-4690KIntel  $235Bench 80%, 50,640 samples690x
Core i7-4770KIntel  $430Bench 79%, 33,842 samples299x
GPU
GTX 970Nvidia  $370Bench 65%, 183,377 samples1,211x
GTX 980 TiNvidia  $560Bench 98%, 50,817 samples621x
GTX 980Nvidia  $500Bench 76%, 36,969 samples577x
SSD
850 Pro 256GBSamsung  $126Bench 100%, 24,757 samples1x
RAM
TridentX DDR3 2400 C10 2x8GBG.SKILL  $133Bench 67%, 4,127 samples321x
Vengeance Pro DDR3 2400 C11 2x8GBCorsair  $130Bench 60%, 7,796 samples260x
Vengeance Pro DDR3 1866 C9 2x8GBCorsairBench 54%, 3,579 samples176x
EDIT WITH CUSTOM PC BUILDER Value: 70% - Very good Total price: $968

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 (UBM).
  • - 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.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) August 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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 Comments

SSDrivePro
Avatar level
1,295

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
1,988

Good (edit your comment) Add link

10 days ago.

it's awesome!

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
1,470

Excellent

8 days ago.

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

ITA-User
Avatar level
1,343

Excellent

1 month ago.

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

ESP-User
Avatar level
1,315

Good

1 month ago.

Reliable and fast, really fast

AUS-User
Avatar level
1,300

Liked

11 days ago.

Comment 

Line up challengers, I dare you—May '16

SSDrivePro
Avatar level
1,295

Outstanding

2 years ago.

VNM-User
Avatar level
1,243

Poor

2 months ago.

Hope i get this soon

NLD-User
Avatar level
1,216

Poor

1 month ago.

Cheap fast SSD

MYS-User
Avatar level
1,089

Poor

26 days ago.

BAPAK AKU PUNYER LAGI LAJU.

SWE-User
Avatar level
1,034

Good

2 months ago.

best sata disk ever

ISR-User
Avatar level
1,004

Poor

2 months ago.

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

DNK-User
Avatar level
974

Good

3 months ago.

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

SRB-User
Avatar level
974

Good

2 months ago.

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

CHL-User
Avatar level
902

Poor

2 months ago.

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

PAK-User
Avatar level
866

Disliked

1 month ago.

Comment 

Excellent drive very consistent and blazingly fast —Mar '15

Sacagewea12
Avatar level
14

Outstanding

2 years ago.

10/10 perfect

deicer
Avatar level
2

Excellent

2 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

11 months ago.

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

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Speed Comparisons

vs Samsung 850 Evo 250GB
vs Samsung 850 Pro 256GB
vs Crucial MX200 250GB
vs HyperX Savage 240GB
vs SanDisk Extreme Pro 240GB
vs Crucial MX300 275GB
vs Samsung 840 Evo 250GB
vs Samsung 840 Pro 256GB
vs SanDisk Ultra II 240GB

857 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 i7-7700K $298Nvidia GTX 1070 $410Samsung 850 Evo 250GB $100
AMD Ryzen 7 1700 $280AMD RX 480 $390Samsung 850 Pro 256GB $126
Intel Core i5-7600K $212Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $168
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $718SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $57HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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