Intel
SamsungMZ-7KE256BW
  

Release date ≈ Q3 2016.

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

Real World Speed
Performance profile from 141,950 user samples
21 User Benchmarks
Best Bench: 78% 129GB free (System drive)
Worst Bench: 53% 84GB free (System drive)
Poor: 53% Great: 78%
SPEED RANK: 745th / 1080
141,929 User Benchmarks
Best Bench: 124% 238GB free
Worst Bench: 71% 71GB free (System drive)
Poor: 71% Great: 124%
SPEED RANK: 256th / 1080
Effective Speed
Effective SSD Speed
65.5 % 102 % Much faster effective speed.
+55%
Read
Avg. Sequential Read Speed
376 MB/s 469 MB/s Faster read speed.
+25%
Write
Avg. Sequential Write Speed
222 MB/s 396 MB/s Much faster write speed.
+78%
4K Read
Avg. 4K Random Read Speed
23.8 MB/s 33.9 MB/s Much faster random read.
+42%
4K Write
Avg. 4K Random Write Speed
61.7 MB/s 89.6 MB/s Much faster random write.
+45%
Mixed
Avg. Sequential Mixed IO Speed
250 MB/s 334 MB/s Much faster mixed IO speed.
+34%
4K Mixed
Avg. 4K Random Mixed IO Speed
25.5 MB/s 44.1 MB/s Much faster random mixed IO.
+73%
SusWrite
Avg. Sustained Write Speed
165 MB/s 346 MB/s Hugely faster sustained write speed.
+110%
Read
Peak Sequential Read Speed
508 MB/s 515 MB/s +1%
Write
Peak Sequential Write Speed
261 MB/s 488 MB/s Hugely faster peak write speed.
+87%
4K Read
Peak 4K Random Read Speed
33.1 MB/s 43.6 MB/s Much faster peak random read.
+32%
4K Write
Peak 4K Random Write Speed
93.6 MB/s 125 MB/s Much faster peak random write.
+34%
Mixed
Peak Sequential Mixed IO Speed
320 MB/s 383 MB/s Faster peak mixed IO speed.
+20%
4K Mixed
Peak 4K Random Mixed IO Speed
37.9 MB/s 56.7 MB/s Much faster peak random mixed IO.
+50%
SusWrite
Peak Sequential Sustained Write 60s Average
236 MB/s 484 MB/s Hugely faster peak sustained write speed.
+105%
Market Share
Based on 76,160,345 SSDs tested
Market Share
Market Share (trailing 30 days)
0 % 0.09 % Insanely higher market share.
+∞%
User Rating
UBM User Rating
50 % 54 % Slightly more popular.
+8%
Age
Newest
92+ Months More recent.
+23%
119 Months
DQ Read
Peak 4K-64Thread Read Speed
293 MB/s 388 MB/s Much faster peak deep queue read.
+32%
DQ Write
Peak 4K-64Thread Write Speed
243 MB/s 361 MB/s Much faster peak deep queue write.
+49%
AS-SSD Total
AS-SSD Total Score
932 Pts 1,280 Pts Much stronger server IO.
+37%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
150 MB/s 356 MB/s Hugely faster peak deep queue mixed IO.
+137%
ADQ Read
Avg. 4K-64Thread Read Speed
221 MB/s 344 MB/s Much faster deep queue read.
+56%
ADQ Write
Avg. 4K-64Thread Write Speed
187 MB/s 282 MB/s Much faster deep queue write.
+51%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
113 MB/s 295 MB/s Hugely faster deep queue mixed IO.
+161%
Capacity
Capacity
180GB 256GB
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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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Solid State Drive Rankings (Price vs Performance) June 2024 SSD Rankings

Welcome to our 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.
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