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SamsungMZ-7PD256BW
OCZVTR180-25SAT3-240G
▲ 5420,557 ▼

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC. Release date: Q4 2012.

VS
▲ 53454 ▼

Controller: OCZ Barefoot 3 M00. Flash: Toshiba 19nm (2nd gen) MLC NAND. Release date: Q1 2015.

Effective Speed 
+5%
Real World Speed
Performance profile from 74,202 user samples
Benchmark your SSD here
73,119 User Benchmarks
Best Bench: 116% 238GB free
Worst Bench: 68% 11GB free (System drive)
Poor: 68% Great: 116%
SPEED RANK: 287th / 1080
1,083 User Benchmarks
Best Bench: 108% 96GB free (System drive)
Worst Bench: 67% 83GB free (System drive)
Poor: 67% Great: 108%
SPEED RANK: 337th / 1080
Effective Speed
Effective SSD Speed 		95 % Slightly faster effective speed.
+5% 		90.2 %
Average Score 
+4%
Read
Avg. Sequential Read Speed 		459 MB/s Faster read speed.
+14% 		401 MB/s
Write
Avg. Sequential Write Speed 		367 MB/s 422 MB/s Faster write speed.
+15%
4K Read
Avg. 4K Random Read Speed 		31 MB/s Much faster random read.
+33% 		23.3 MB/s
4K Write
Avg. 4K Random Write Speed 		85.6 MB/s +3% 83.5 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		303 MB/s 321 MB/s Slightly faster mixed IO speed.
+6%
4K Mixed
Avg. 4K Random Mixed IO Speed 		39.5 MB/s Faster random mixed IO.
+21% 		32.7 MB/s
SusWrite
Avg. Sustained Write Speed 		312 MB/s 384 MB/s Faster sustained write speed.
+23%
Peak Score 
+8%
Read
Peak Sequential Read Speed 		510 MB/s Faster peak read speed.
+14% 		448 MB/s
Write
Peak Sequential Write Speed 		480 MB/s 486 MB/s +1%
4K Read
Peak 4K Random Read Speed 		36.1 MB/s Faster peak random read.
+29% 		27.9 MB/s
4K Write
Peak 4K Random Write Speed 		114 MB/s 127 MB/s Faster peak random write.
+11%
Mixed
Peak Sequential Mixed IO Speed 		368 MB/s +4% 353 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		47.6 MB/s Faster peak random mixed IO.
+19% 		40 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		477 MB/s +3% 461 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 77,570,518 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.05 % Insanely higher market share.
+∞% 		0 %
Value
Value For Money 		8.21 % +3% 7.95 %
User Rating
UBM User Rating 		54 % +2% 53 %
Price
Price (score) 		$175 $160 Slightly cheaper.
+9%
Nice To Haves 
+19%
Age
Newest 		145 Months 116 Months More recent.
+20%
DQ Read
Peak 4K-64Thread Read Speed 		385 MB/s Faster peak deep queue read.
+11% 		347 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		334 MB/s 372 MB/s Faster peak deep queue write.
+11%
AS-SSD Total
AS-SSD Total Score 		1,221 Pts +2% 1,193 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		176 MB/s 287 MB/s Much faster peak deep queue mixed IO.
+63%
ADQ Read
Avg. 4K-64Thread Read Speed 		346 MB/s Faster deep queue read.
+14% 		304 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		262 MB/s 298 MB/s Faster deep queue write.
+14%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		147 MB/s 247 MB/s Much faster deep queue mixed IO.
+68%
Specifications 
Capacity
Capacity 		256GB 240GB
Conclusion 
Average Bench 95%
Average Bench 90.2%

The 840 Pro is stunning. Samsung have created a completely in-house package including both the controller and their own new 21nm toggle mode NAND. On release (Oct '12) this was the fastest performing deep queue depth consumer grade SSD available. Fast forward six months (Apr '13) and the 840 Pro still holds both the random read/write deep queue depth speed records of 384 MB/s and 326 MB/s, impressive considering how fast the SSD space tends to move. There are no obvious weaknesses, in-fact the 840 pro takes first place in nearly all of the speed categories and is only seriously rivalled by one drive, the OCZ Vector. To conclude, in terms of both outright performance, particularly server orientated, and value for money the 256GB and 128GB 840 Pros are amongst the top handful of drives currently available. [Jun '13 SSDrivePro]

MORE DETAILS

The OCZ Vector 180 has a five year warranty and is rated for 50GB/day over that time. In terms of hardware the Vector 180 is basically a rebadged two year old Vector 150. The 180 does feature "Power Failure Management Plus" which protects data that has already been written to the drive but any data that is in the process of being written is still at risk. In terms of performance the Vector 180, like its predecessor (Vector 150) is very strong. With an effective speed of 98.7% the Vector appears to hold its own with the likes of the similarly priced Samsung 850 Pro. But taking a closer look at the performance differences between the 850 Pro and Vector 180 shows that although the headline speeds are comparable, the Vector has significantly slower 4K Mixed IO speeds, this won't impact most consumers but it could be a sticking point for power users. [Jun '15 SSDrivePro]

MORE DETAILS

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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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