COMPARE
Today's hottest
Amazon Ebay
deals
SSD
RANKINGS
TEST
YOUR SSD
ADD TO PC
BUILD
SamsungMZ-7PD256BW
CorsairCSSD-F480GB3-BK
▲ 5420,557 ▼

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

VS
▲ 501 ▼

Controller: LSI SandForce SF2281VB1-SDC. Memory: Micron Asynchronous 25nm MLC. Release date ≈ Q4 2014.

Effective Speed 
+168%
Real World Speed
Performance profile from 73,292 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
173 User Benchmarks
Best Bench: 41% 443GB free
Worst Bench: 29% 395GB free
Poor: 29% Great: 41%
SPEED RANK: 995th / 1080
Effective Speed
Effective SSD Speed 		95 % Hugely faster effective speed.
+168% 		35.4 %
Average Score 
+176%
Read
Avg. Sequential Read Speed 		459 MB/s Hugely faster read speed.
+147% 		186 MB/s
Write
Avg. Sequential Write Speed 		367 MB/s Hugely faster write speed.
+107% 		177 MB/s
4K Read
Avg. 4K Random Read Speed 		31 MB/s Hugely faster random read.
+81% 		17.1 MB/s
4K Write
Avg. 4K Random Write Speed 		85.6 MB/s Hugely faster random write.
+503% 		14.2 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		303 MB/s Hugely faster mixed IO speed.
+85% 		164 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		39.5 MB/s Hugely faster random mixed IO.
+182% 		14 MB/s
SusWrite
Avg. Sustained Write Speed 		312 MB/s Hugely faster sustained write speed.
+124% 		139 MB/s
Peak Score 
+176%
Read
Peak Sequential Read Speed 		510 MB/s Hugely faster peak read speed.
+101% 		254 MB/s
Write
Peak Sequential Write Speed 		480 MB/s Hugely faster peak write speed.
+104% 		235 MB/s
4K Read
Peak 4K Random Read Speed 		36.1 MB/s Much faster peak random read.
+60% 		22.5 MB/s
4K Write
Peak 4K Random Write Speed 		114 MB/s Hugely faster peak random write.
+555% 		17.4 MB/s
Mixed
Peak Sequential Mixed IO Speed 		368 MB/s Much faster peak mixed IO speed.
+61% 		228 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		47.6 MB/s Hugely faster peak random mixed IO.
+143% 		19.6 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		477 MB/s Hugely faster peak sustained write speed.
+204% 		157 MB/s
Value & Sentiment 
+∞%
Market Share
Based on 77,537,623 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.07 % Insanely higher market share.
+∞% 		0 %
Value
Value For Money 		8.21 % Hugely better value.
+118% 		3.77 %
User Rating
UBM User Rating 		54 % Slightly more popular.
+8% 		50 %
Price
Price (score) 		$175 Cheaper.
+30% 		$249
Nice To Haves 
+242%
Age
Newest 		145 Months 120+ Months More recent.
+17%
DQ Read
Peak 4K-64Thread Read Speed 		385 MB/s Hugely faster peak deep queue read.
+226% 		118 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		334 MB/s Hugely faster peak deep queue write.
+451% 		60.6 MB/s
AS-SSD Total
AS-SSD Total Score 		1,221 Pts Hugely stronger server IO.
+238% 		361 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		176 MB/s Hugely faster peak deep queue mixed IO.
+137% 		74.4 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		346 MB/s Hugely faster deep queue read.
+258% 		96.7 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		262 MB/s Hugely faster deep queue write.
+440% 		48.5 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		147 MB/s Hugely faster deep queue mixed IO.
+202% 		48.7 MB/s
Specifications 
Capacity
Capacity 		256GB 480GB
Conclusion 
Average Bench 95%
Average Bench 35.4%

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

User Builds 
73,119
173
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
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.

UserBenchmark of the month

Gaming Desktop ProGaming

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?
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 »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $159Nvidia RTX 4060 $280WD Black SN850X M.2 2TB $135
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $75
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $370
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback