SamsungMZ-7KE256BW
NvmeSB-ROCKET-512

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

Release date ≈ Q3 2017.

Real World Speed
Performance profile from 148,003 user samples
129,270 User Benchmarks
Best Bench: 122% 238GB free
Worst Bench: 71% 37GB free
Poor: 71% Great: 122%
SPEED RANK: 236th / 1058
18,733 User Benchmarks
Best Bench: 277% 477GB free
Worst Bench: 85% 449GB free
Poor: 85% Great: 277%
SPEED RANK: 106th / 1058
Effective Speed
Effective SSD Speed
102 % 183 % Hugely faster effective speed.
+80%
Read
Avg. Sequential Read Speed
474 MB/s 1055 MB/s Hugely faster read speed.
+123%
Write
Avg. Sequential Write Speed
406 MB/s 1633 MB/s Hugely faster write speed.
+302%
4K Read
Avg. 4K Random Read Speed
33.1 MB/s 38.5 MB/s Faster random read.
+16%
4K Write
Avg. 4K Random Write Speed
86.7 MB/s 138 MB/s Much faster random write.
+59%
Mixed
Avg. Sequential Mixed IO Speed
337 MB/s 1050 MB/s Hugely faster mixed IO speed.
+212%
4K Mixed
Avg. 4K Random Mixed IO Speed
43.2 MB/s 58.4 MB/s Much faster random mixed IO.
+35%
SusWrite
Avg. Sustained Write Speed
355 MB/s 670 MB/s Hugely faster sustained write speed.
+89%
Read
Peak Sequential Read Speed
516 MB/s 1549 MB/s Hugely faster peak read speed.
+200%
Write
Peak Sequential Write Speed
489 MB/s 2349 MB/s Hugely faster peak write speed.
+380%
4K Read
Peak 4K Random Read Speed
42 MB/s 50 MB/s Faster peak random read.
+19%
4K Write
Peak 4K Random Write Speed
118 MB/s 206 MB/s Much faster peak random write.
+75%
Mixed
Peak Sequential Mixed IO Speed
387 MB/s 1648 MB/s Hugely faster peak mixed IO speed.
+326%
4K Mixed
Peak 4K Random Mixed IO Speed
55.6 MB/s 82 MB/s Much faster peak random mixed IO.
+47%
SusWrite
Peak Sequential Sustained Write 60s Average
486 MB/s 1334 MB/s Hugely faster peak sustained write speed.
+174%
Market Share
Based on 47,127,606 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.16 % Hugely higher market share.
+167%
0.06 %
Value
Value For Money
8.1 % 50.3 % Hugely better value.
+521%
User Rating
UBM User Rating
54 % Slightly more popular.
+8%
50 %
Price
Price (score)
$195 $75 Much cheaper.
+62%
Age
Newest
86 Months 50+ Months Much more recent.
+42%
DQ Read
Peak 4K-64Thread Read Speed
388 MB/s 1410 MB/s Hugely faster peak deep queue read.
+263%
DQ Write
Peak 4K-64Thread Write Speed
361 MB/s 1314 MB/s Hugely faster peak deep queue write.
+264%
AS-SSD Total
AS-SSD Total Score
1,270 Pts 4,242 Pts Hugely stronger server IO.
+234%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
357 MB/s 1295 MB/s Hugely faster peak deep queue mixed IO.
+263%
ADQ Read
Avg. 4K-64Thread Read Speed
345 MB/s 839 MB/s Hugely faster deep queue read.
+143%
ADQ Write
Avg. 4K-64Thread Write Speed
289 MB/s 806 MB/s Hugely faster deep queue write.
+179%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
298 MB/s 805 MB/s Hugely faster deep queue mixed IO.
+170%
Capacity
Capacity
256GB 512GB
ADVERTISEMENT

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]

MORE DETAILS

which brand is called "Nvme"? [Oct '20 FpsMakerProI9]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) September 2021 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]

ADVERTISEMENT

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.
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.

UserBenchmark of the month

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.
  • - See speed test results from other users.
  • - 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.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $72G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback