SamsungMZ-7KE256BW
SamsungMZ-750250BW

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

Release date ≈ Q1 2016.

Real World Speed
Performance profile from 72,136 user samples
50,590 User Benchmarks
Best Bench: 128% 183GB free (System drive)
Worst Bench: 78% 117GB free (System drive)
Poor: 78% Great: 128%
SPEED RANK: 152nd / 976
21,546 User Benchmarks
Best Bench: 114% 197GB free
Worst Bench: 64% 19GB free (System drive)
Poor: 64% Great: 114%
SPEED RANK: 181st / 976
Effective Speed
Effective SSD Speed
105 % Slightly faster effective speed.
+10%
95.4 %
Read
Avg. Sequential Read Speed
476 MB/s +3% 464 MB/s
Write
Avg. Sequential Write Speed
416 MB/s 423 MB/s +2%
4K Read
Avg. 4K Random Read Speed
34 MB/s 37.1 MB/s Slightly faster random read.
+9%
4K Write
Avg. 4K Random Write Speed
94.7 MB/s 96.2 MB/s +2%
Mixed
Avg. Sequential Mixed IO Speed
342 MB/s Slightly faster mixed IO speed.
+12%
304 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
44.8 MB/s 49.1 MB/s Slightly faster random mixed IO.
+10%
SusWrite
Avg. Sustained Write Speed
363 MB/s Hugely faster sustained write speed.
+120%
165 MB/s
Read
Peak Sequential Read Speed
516 MB/s +1% 509 MB/s
Write
Peak Sequential Write Speed
490 MB/s +0% 489 MB/s
4K Read
Peak 4K Random Read Speed
44.5 MB/s 44.7 MB/s +0%
4K Write
Peak 4K Random Write Speed
131 MB/s +3% 127 MB/s
Mixed
Peak Sequential Mixed IO Speed
387 MB/s Slightly faster peak mixed IO speed.
+9%
354 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
58.6 MB/s 60.7 MB/s +4%
SusWrite
Peak Sequential Sustained Write 60s Average
482 MB/s Hugely faster peak sustained write speed.
+88%
256 MB/s
Market Share
Based on 10,302,979 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.56 % Much higher market share.
+51%
0.37 %
Value
Value For Money
70.9 % Slightly better value.
+12%
63.2 %
User Rating
UBM User Rating
96 % Hugely more popular.
+85%
52 %
Price
Price (score)
$163 +1% $164
Age
Newest
53 Months 34+ Months Much more recent.
+36%
DQ Read
Peak 4K-64Thread Read Speed
388 MB/s +0% 387 MB/s
DQ Write
Peak 4K-64Thread Write Speed
354 MB/s 357 MB/s +1%
AS-SSD Total
AS-SSD Total Score
1,281 Pts +0% 1,278 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
356 MB/s +4% 341 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
342 MB/s +3% 331 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
301 MB/s +1% 299 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
296 MB/s Slightly faster deep queue mixed IO.
+5%
281 MB/s
Capacity
Capacity
256GB 250GB
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

Solid State Drive Rankings (Price vs Performance) December 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]

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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $325Samsung 850 Evo 250GB $63
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $98
Intel Core i5-8600K $243Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $72
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $830SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback