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SamsungMZ-V5P256BW
SamsungMZ-7KE256BW
▲ 5294 ▼

Release date ≈ Q4 2015.

VS
▲ 5441,223 ▼

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

Effective Speed 
+96%
Real World Speed
Performance profile from 182,256 user samples
Benchmark your SSD here
40,327 User Benchmarks
Best Bench: 243% 37GB free (System drive)
Worst Bench: 131% 8GB free (System drive)
Poor: 131% Great: 243%
SPEED RANK: 106th / 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 		199 % Hugely faster effective speed.
+96% 		102 %
Average Score 
+93%
Read
Avg. Sequential Read Speed 		1,726 MB/s Hugely faster read speed.
+268% 		469 MB/s
Write
Avg. Sequential Write Speed 		792 MB/s Hugely faster write speed.
+100% 		396 MB/s
4K Read
Avg. 4K Random Read Speed 		48.9 MB/s Much faster random read.
+44% 		33.9 MB/s
4K Write
Avg. 4K Random Write Speed 		132 MB/s Much faster random write.
+47% 		89.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		630 MB/s Hugely faster mixed IO speed.
+89% 		334 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		51.6 MB/s Faster random mixed IO.
+17% 		44.1 MB/s
SusWrite
Avg. Sustained Write Speed 		636 MB/s Hugely faster sustained write speed.
+84% 		346 MB/s
Peak Score 
+95%
Read
Peak Sequential Read Speed 		2,085 MB/s Hugely faster peak read speed.
+305% 		515 MB/s
Write
Peak Sequential Write Speed 		927 MB/s Hugely faster peak write speed.
+90% 		488 MB/s
4K Read
Peak 4K Random Read Speed 		52.4 MB/s Faster peak random read.
+20% 		43.6 MB/s
4K Write
Peak 4K Random Write Speed 		188 MB/s Much faster peak random write.
+50% 		125 MB/s
Mixed
Peak Sequential Mixed IO Speed 		785 MB/s Hugely faster peak mixed IO speed.
+105% 		383 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		61.2 MB/s Slightly faster peak random mixed IO.
+8% 		56.7 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		916 MB/s Hugely faster peak sustained write speed.
+89% 		484 MB/s
Value & Sentiment 
+19%
Market Share
Based on 77,604,989 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.04 % 0.08 % Hugely higher market share.
+100%
Value
Value For Money 		19.3 % Much better value.
+55% 		12.5 %
User Rating
UBM User Rating 		52 % 54 % +4%
Price
Price (score) 		$150 $110 Cheaper.
+27%
Nice To Haves 
+63%
Age
Newest 		108+ Months More recent.
+13% 		124 Months
DQ Read
Peak 4K-64Thread Read Speed 		1,094 MB/s Hugely faster peak deep queue read.
+182% 		388 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		330 MB/s 361 MB/s Slightly faster peak deep queue write.
+9%
AS-SSD Total
AS-SSD Total Score 		2,611 Pts Hugely stronger server IO.
+104% 		1,280 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		396 MB/s Faster peak deep queue mixed IO.
+11% 		356 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		966 MB/s Hugely faster deep queue read.
+181% 		344 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		283 MB/s +0% 282 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		360 MB/s Faster deep queue mixed IO.
+22% 		295 MB/s
Specifications 
Capacity
Capacity 		256GB 256GB
Conclusion 
Average Bench 199%
Average Bench 102%

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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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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 Frequently Asked Questions

Storage Devices FAQ
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Solid State Drives
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What is 4K 64 thread write speed?
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