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SamsungMZ-7PD256BW
OCZVTX3MI-25SAT3-240G
▲ 5420,555 ▼

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

VS
▲ 51632 ▼

Controller: LSI SandForce SF2281VB1-SDC. Flash: Toshiba 32nm Toggle Mode. Release date: Q2 2011.

Effective Speed 
+26%
Real World Speed
Performance profile from 74,403 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: 279th / 1072
1,284 User Benchmarks
Best Bench: 91% 49GB free
Worst Bench: 55% 16GB free (System drive)
Poor: 55% Great: 91%
SPEED RANK: 572nd / 1072
Effective Speed
Effective SSD Speed 		95 % Faster effective speed.
+26% 		75.2 %
Average Score 
+29%
Read
Avg. Sequential Read Speed 		459 MB/s Faster read speed.
+20% 		384 MB/s
Write
Avg. Sequential Write Speed 		367 MB/s Much faster write speed.
+56% 		235 MB/s
4K Read
Avg. 4K Random Read Speed 		31 MB/s Faster random read.
+17% 		26.6 MB/s
4K Write
Avg. 4K Random Write Speed 		85.6 MB/s Faster random write.
+17% 		73.2 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		303 MB/s Faster mixed IO speed.
+13% 		267 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		39.5 MB/s Faster random mixed IO.
+18% 		33.5 MB/s
SusWrite
Avg. Sustained Write Speed 		312 MB/s Much faster sustained write speed.
+59% 		196 MB/s
Peak Score 
+31%
Read
Peak Sequential Read Speed 		510 MB/s Faster peak read speed.
+15% 		442 MB/s
Write
Peak Sequential Write Speed 		480 MB/s Much faster peak write speed.
+72% 		279 MB/s
4K Read
Peak 4K Random Read Speed 		36.1 MB/s Slightly faster peak random read.
+8% 		33.3 MB/s
4K Write
Peak 4K Random Write Speed 		114 MB/s 114 MB/s
Mixed
Peak Sequential Mixed IO Speed 		368 MB/s Faster peak mixed IO speed.
+21% 		303 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		47.6 MB/s Faster peak random mixed IO.
+10% 		43.2 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		477 MB/s Hugely faster peak sustained write speed.
+92% 		249 MB/s
Value & Sentiment 
+127%
Market Share
Based on 75,633,570 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.06 % Hugely higher market share.
+500% 		0.01 %
Value
Value For Money 		7.72 % Better value.
+17% 		6.62 %
User Rating
UBM User Rating 		54 % Slightly more popular.
+6% 		51 %
Price
Price (score) 		$190 $160 Cheaper.
+16%
Nice To Haves 
+8%
Age
Newest 		138 Months More recent.
+12% 		156 Months
DQ Read
Peak 4K-64Thread Read Speed 		385 MB/s Faster peak deep queue read.
+24% 		310 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		334 MB/s Much faster peak deep queue write.
+39% 		241 MB/s
AS-SSD Total
AS-SSD Total Score 		1,221 Pts Stronger server IO.
+26% 		973 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		176 MB/s 291 MB/s Much faster peak deep queue mixed IO.
+65%
ADQ Read
Avg. 4K-64Thread Read Speed 		346 MB/s Much faster deep queue read.
+31% 		264 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		262 MB/s Much faster deep queue write.
+31% 		200 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		147 MB/s 195 MB/s Much faster deep queue mixed IO.
+33%
Specifications 
Capacity
Capacity 		256GB 240GB
Conclusion 
Average Bench 95%
Average Bench 75.2%
ADVERTISEMENT

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

This drive is another victim to the Sandforce 2281 controller's relative inability to handle incompressible data. The performance profile shows superb sequential read ability but relatively very poor sequential write and 4k read scores. With a real world speed of 371.4 MB/s and an AS SSD total score of 779 the MAX IOPS version of the Vertex 3 is below average by today's standards and there are significantly better deals available elsewhere. [Feb '12 SSDrivePro]

MORE DETAILS

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Solid State Drive Rankings (Price vs Performance) April 2024 SSD Rankings

Welcome to our 2.5" and M.2 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.
How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

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How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware

 Frequently Asked Questions

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
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What is incompressible data?
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Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
How is the AS SSD write score calculated?
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ALL FAQs »

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Intel Core i5-12400F $132Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
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