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SamsungMZ-7KE256BW
▲ 500 ▼
  

Release date ≈ Q1 2020.

VS
▲ 5441,222 ▼

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

Effective Speed 
+92%
Real World Speed
Performance profile from 141,935 user samples
Benchmark your SSD here
6 User Benchmarks
Best Bench: 212% 2TB free
Worst Bench: 180% 1.5TB free
Poor: 180% Great: 212%
SPEED RANK: 110th / 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 		195 % Hugely faster effective speed.
+92% 		102 %
Average Score 
+75%
Read
Avg. Sequential Read Speed 		645 MB/s Much faster read speed.
+38% 		469 MB/s
Write
Avg. Sequential Write Speed 		1069 MB/s Hugely faster write speed.
+170% 		396 MB/s
4K Read
Avg. 4K Random Read Speed 		41.4 MB/s Faster random read.
+22% 		33.9 MB/s
4K Write
Avg. 4K Random Write Speed 		122 MB/s Much faster random write.
+36% 		89.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		560 MB/s Much faster mixed IO speed.
+68% 		334 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		39.1 MB/s 44.1 MB/s Faster random mixed IO.
+13%
SusWrite
Avg. Sustained Write Speed 		1064 MB/s Hugely faster sustained write speed.
+208% 		346 MB/s
Peak Score 
+46%
Read
Peak Sequential Read Speed 		690 MB/s Much faster peak read speed.
+34% 		515 MB/s
Write
Peak Sequential Write Speed 		1103 MB/s Hugely faster peak write speed.
+126% 		488 MB/s
4K Read
Peak 4K Random Read Speed 		46.4 MB/s Slightly faster peak random read.
+6% 		43.6 MB/s
4K Write
Peak 4K Random Write Speed 		144 MB/s Faster peak random write.
+15% 		125 MB/s
Mixed
Peak Sequential Mixed IO Speed 		580 MB/s Much faster peak mixed IO speed.
+51% 		383 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		42 MB/s 56.7 MB/s Much faster peak random mixed IO.
+35%
SusWrite
Peak Sequential Sustained Write 60s Average 		1098 MB/s Hugely faster peak sustained write speed.
+127% 		484 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 76,157,465 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 
+237%
Age
Newest 		51+ Months Much more recent.
+57% 		119 Months
DQ Read
Peak 4K-64Thread Read Speed 		1451 MB/s Hugely faster peak deep queue read.
+274% 		388 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		1227 MB/s Hugely faster peak deep queue write.
+240% 		361 MB/s
AS-SSD Total
AS-SSD Total Score 		3,875 Pts Hugely stronger server IO.
+203% 		1,280 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		1357 MB/s Hugely faster peak deep queue mixed IO.
+281% 		356 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		1299 MB/s Hugely faster deep queue read.
+278% 		344 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		1025 MB/s Hugely faster deep queue write.
+263% 		282 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		1181 MB/s Hugely faster deep queue mixed IO.
+300% 		295 MB/s
Specifications 
Capacity
Capacity 		3TB 256GB
Conclusion 
Average Bench 195%
Average Bench 102%
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]

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Storage Devices FAQ
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Solid State Drives
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The Best
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Intel Core i5-13600K $260Nvidia RTX 4070 $549Crucial T700 M.2 4TB $369
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