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Intel
SamsungMZ-7KE256BW
▲ 500 ▼
  

Release date ≈ Q4 2017.

VS
▲ 5441,222 ▼

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

Effective Speed 
+871%
Real World Speed
Performance profile from 141,938 user samples
Benchmark your SSD here
9 User Benchmarks
Best Bench: 18% 250GB free (System drive)
Worst Bench: 2% 79GB free (System drive)
Poor: 2% Great: 18%
SPEED RANK: 1070th / 1074
141,929 User Benchmarks
Best Bench: 124% 238GB free
Worst Bench: 71% 71GB free (System drive)
Poor: 71% Great: 124%
SPEED RANK: 250th / 1074
Effective Speed
Effective SSD Speed 		10.5 % 102 % Hugely faster effective speed.
+871%
Average Score 
+1,527%
Read
Avg. Sequential Read Speed 		43.2 MB/s 469 MB/s Hugely faster read speed.
+986%
Write
Avg. Sequential Write Speed 		23.8 MB/s 396 MB/s Insanely faster write speed.
+1,564%
4K Read
Avg. 4K Random Read Speed 		0.74 MB/s 33.9 MB/s Insanely faster random read.
+4,481%
4K Write
Avg. 4K Random Write Speed 		16.8 MB/s 89.6 MB/s Hugely faster random write.
+433%
Mixed
Avg. Sequential Mixed IO Speed 		31.7 MB/s 334 MB/s Hugely faster mixed IO speed.
+954%
4K Mixed
Avg. 4K Random Mixed IO Speed 		2.5 MB/s 44.1 MB/s Insanely faster random mixed IO.
+1,664%
SusWrite
Avg. Sustained Write Speed 		48.7 MB/s 346 MB/s Hugely faster sustained write speed.
+610%
Peak Score 
+798%
Read
Peak Sequential Read Speed 		209 MB/s 515 MB/s Hugely faster peak read speed.
+146%
Write
Peak Sequential Write Speed 		76.2 MB/s 488 MB/s Hugely faster peak write speed.
+540%
4K Read
Peak 4K Random Read Speed 		1.4 MB/s 43.6 MB/s Insanely faster peak random read.
+3,014%
4K Write
Peak 4K Random Write Speed 		39.6 MB/s 125 MB/s Hugely faster peak random write.
+216%
Mixed
Peak Sequential Mixed IO Speed 		77.8 MB/s 383 MB/s Hugely faster peak mixed IO speed.
+392%
4K Mixed
Peak 4K Random Mixed IO Speed 		5.8 MB/s 56.7 MB/s Hugely faster peak random mixed IO.
+878%
SusWrite
Peak Sequential Sustained Write 60s Average 		97.2 MB/s 484 MB/s Hugely faster peak sustained write speed.
+398%
Value & Sentiment 
+∞%
Market Share
Based on 76,148,993 SSDs tested
See market share leaders
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%
Nice To Haves 
+960%
Age
Newest 		78+ Months Much more recent.
+34% 		119 Months
DQ Read
Peak 4K-64Thread Read Speed 		15.1 MB/s 388 MB/s Insanely faster peak deep queue read.
+2,470%
DQ Write
Peak 4K-64Thread Write Speed 		163 MB/s 361 MB/s Hugely faster peak deep queue write.
+121%
AS-SSD Total
AS-SSD Total Score 		260 Pts 1,280 Pts Hugely stronger server IO.
+392%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		264 MB/s 356 MB/s Much faster peak deep queue mixed IO.
+35%
ADQ Read
Avg. 4K-64Thread Read Speed 		7.44 MB/s 344 MB/s Insanely faster deep queue read.
+4,524%
ADQ Write
Avg. 4K-64Thread Write Speed 		129 MB/s 282 MB/s Hugely faster deep queue write.
+119%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		188 MB/s 295 MB/s Much faster deep queue mixed IO.
+57%
Specifications 
Capacity
Capacity 		320GB 256GB
Conclusion 
Average Bench 10.5%
Average Bench 102%
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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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Storage Devices FAQ
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