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SamsungMZ-7PD256BW
OCZRVD3X2-FHPX4-240G
$471
▲ 5420,557 ▼

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

VS
▲ 521,124 ▼
 $471 

Available in 240GB, 480GB and 960GB capacities. Release date: Q3 2011.

Effective Speed 
+∞%
Real World Speed
Performance profile from 73,119 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

We don't have any user benchmarks for this SSD. (Submit one here)
Effective Speed
Effective SSD Speed 		95 % Insanely faster effective speed.
+∞% 		0 %
Peak Score 
+31%
Read
Peak Sequential Read Speed 		510 MB/s 728 MB/s Much faster peak read speed.
+43%
Write
Peak Sequential Write Speed 		480 MB/s Much faster peak write speed.
+63% 		294 MB/s
4K Read
Peak 4K Random Read Speed 		36.1 MB/s Much faster peak random read.
+31% 		27.6 MB/s
4K Write
Peak 4K Random Write Speed 		114 MB/s Much faster peak random write.
+73% 		66 MB/s
Value & Sentiment 
+329%
Market Share
Based on 77,441,191 SSDs tested
See market share leaders
Value
Value For Money 		8.21 % Hugely better value.
+921% 		-1 %
User Rating
UBM User Rating 		54 % +4% 52 %
Price
Price (score) 		$175 Much cheaper.
+63% 		$471
Nice To Haves 
+22%
Age
Newest 		145 Months Slightly more recent.
+9% 		159 Months
DQ Read
Peak 4K-64Thread Read Speed 		385 MB/s Much faster peak deep queue read.
+31% 		295 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		334 MB/s Faster peak deep queue write.
+22% 		275 MB/s
AS-SSD Total
AS-SSD Total Score 		1,221 Pts Stronger server IO.
+28% 		955 Pts
Specifications 
Capacity
Capacity 		256GB 240GB
Conclusion 
Average Bench 95%

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 RevoDrive 3 X2 has an unbalanced performance profile that won't suit the majority of desktop users. Despite demonstrating a record breaking sequential read speed the RevoDrive shows relative weakness in all the other speed categories. Its Sandforce controller handles compressible data magnificently but fails miserably on incompressible data which is why the AS SSD benchmark figures are less than half the official performance figures stated by OCZ. The RevoDrive is a PCIE based drive so has higher potential bandwidth than SATA 3 drives but with the exception of Sequential Read, the RevoDrive doesn't make use of the additional bandwidth. There are far better deals available elsewhere. [Nov '12 SSDrivePro]

MORE DETAILS

User Builds 
73,119
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Solid State Drive Rankings (Price vs Performance) November 2024 SSD Rankings

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]

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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  • - Reports are generated and presented on userbenchmark.com
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 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?
What is sequential read speed?
What is incompressible data?
What is queue depth?
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?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

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Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
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The Best
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Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $80
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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