SamsungMZ-7PD256BW
CrucialCT240BX200SSD1

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

Controller: Silicon Motion SM2256. Flash Memory: Micron 16nm MLC. Release date: Q4 2015.

Real World Speed
Performance profile from 103,169 user samples
65,256 User Benchmarks
Best Bench: 117% 221GB free
Worst Bench: 63% 210GB free (System drive)
Poor: 63% Great: 117%
SPEED RANK: 272nd / 1058
37,913 User Benchmarks
Best Bench: 92% 138GB free (System drive)
Worst Bench: 54% 56GB free (System drive)
Poor: 54% Great: 92%
SPEED RANK: 529th / 1058
Effective Speed
Effective SSD Speed
94.2 % Faster effective speed.
+23%
76.6 %
Read
Avg. Sequential Read Speed
461 MB/s 462 MB/s +0%
Write
Avg. Sequential Write Speed
370 MB/s Slightly faster write speed.
+5%
352 MB/s
4K Read
Avg. 4K Random Read Speed
30.6 MB/s Slightly faster random read.
+6%
28.9 MB/s
4K Write
Avg. 4K Random Write Speed
82.8 MB/s Faster random write.
+11%
74.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed
301 MB/s 335 MB/s Faster mixed IO speed.
+11%
4K Mixed
Avg. 4K Random Mixed IO Speed
39 MB/s 39.2 MB/s +1%
SusWrite
Avg. Sustained Write Speed
319 MB/s Hugely faster sustained write speed.
+278%
84.5 MB/s
Read
Peak Sequential Read Speed
510 MB/s +1% 507 MB/s
Write
Peak Sequential Write Speed
480 MB/s Slightly faster peak write speed.
+5%
457 MB/s
4K Read
Peak 4K Random Read Speed
36.3 MB/s Slightly faster peak random read.
+8%
33.7 MB/s
4K Write
Peak 4K Random Write Speed
115 MB/s Slightly faster peak random write.
+6%
109 MB/s
Mixed
Peak Sequential Mixed IO Speed
364 MB/s 407 MB/s Faster peak mixed IO speed.
+12%
4K Mixed
Peak 4K Random Mixed IO Speed
47.6 MB/s 48.9 MB/s +3%
SusWrite
Peak Sequential Sustained Write 60s Average
474 MB/s Hugely faster peak sustained write speed.
+414%
92.3 MB/s
Market Share
Based on 47,061,766 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.09 % Hugely higher market share.
+80%
0.05 %
Value
Value For Money
7.13 % +1% 7.09 %
User Rating
UBM User Rating
54 % +2% 53 %
Price
Price (score)
$209 $150 Cheaper.
+28%
Age
Newest
107 Months 70 Months Much more recent.
+35%
DQ Read
Peak 4K-64Thread Read Speed
385 MB/s Faster peak deep queue read.
+19%
324 MB/s
DQ Write
Peak 4K-64Thread Write Speed
333 MB/s 341 MB/s +2%
AS-SSD Total
AS-SSD Total Score
1,221 Pts Slightly stronger server IO.
+9%
1,123 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
175 MB/s 250 MB/s Much faster peak deep queue mixed IO.
+43%
ADQ Read
Avg. 4K-64Thread Read Speed
332 MB/s Faster deep queue read.
+23%
270 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
252 MB/s +2% 247 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
143 MB/s 195 MB/s Much faster deep queue mixed IO.
+36%
Capacity
Capacity
256GB 240GB
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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

Solid State Drive Rankings (Price vs Performance) September 2021 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 freeware 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 upgrades.

UserBenchmark of the month

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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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