CrucialCT256MX100SSD1
$116
SamsungMZ-7PD256BW
 $116 

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC. Release date: Q2 2014.

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

Real World Speed
Performance profile from 114,722 user samples
51,544 User Benchmarks
Best Bench: 98% 209GB free (System drive)
Worst Bench: 60% 25GB free (System drive)
Poor: 60% Great: 98%
SPEED RANK: 433rd / 1058
63,178 User Benchmarks
Best Bench: 116% 221GB free
Worst Bench: 62% 63GB free (System drive)
Poor: 62% Great: 116%
SPEED RANK: 273rd / 1058
Effective Speed
Effective SSD Speed
82.6 % 94.1 % Faster effective speed.
+14%
Read
Avg. Sequential Read Speed
418 MB/s 461 MB/s Faster read speed.
+10%
Write
Avg. Sequential Write Speed
319 MB/s 380 MB/s Faster write speed.
+19%
4K Read
Avg. 4K Random Read Speed
26.5 MB/s 30.7 MB/s Faster random read.
+16%
4K Write
Avg. 4K Random Write Speed
86.3 MB/s Slightly faster random write.
+6%
81.2 MB/s
Mixed
Avg. Sequential Mixed IO Speed
289 MB/s 303 MB/s +5%
4K Mixed
Avg. 4K Random Mixed IO Speed
36.8 MB/s 38.8 MB/s Slightly faster random mixed IO.
+5%
SusWrite
Avg. Sustained Write Speed
241 MB/s 321 MB/s Much faster sustained write speed.
+33%
Read
Peak Sequential Read Speed
458 MB/s 509 MB/s Faster peak read speed.
+11%
Write
Peak Sequential Write Speed
332 MB/s 482 MB/s Much faster peak write speed.
+45%
4K Read
Peak 4K Random Read Speed
30.5 MB/s 36.2 MB/s Faster peak random read.
+19%
4K Write
Peak 4K Random Write Speed
118 MB/s +4% 114 MB/s
Mixed
Peak Sequential Mixed IO Speed
317 MB/s 361 MB/s Faster peak mixed IO speed.
+14%
4K Mixed
Peak 4K Random Mixed IO Speed
44 MB/s 47.4 MB/s Slightly faster peak random mixed IO.
+8%
SusWrite
Peak Sequential Sustained Write 60s Average
330 MB/s 478 MB/s Much faster peak sustained write speed.
+45%
Market Share
Based on 47,331,118 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.06 % 0.09 % Much higher market share.
+50%
Value
Value For Money
9.72 % Much better value.
+37%
7.12 %
User Rating
UBM User Rating
54 % 54 %
Price
Price (score)
$116 Much cheaper.
+44%
$209
Age
Newest
87 Months More recent.
+19%
107 Months
DQ Read
Peak 4K-64Thread Read Speed
241 MB/s 384 MB/s Much faster peak deep queue read.
+59%
DQ Write
Peak 4K-64Thread Write Speed
313 MB/s 335 MB/s Slightly faster peak deep queue write.
+7%
AS-SSD Total
AS-SSD Total Score
949 Pts 1,221 Pts Stronger server IO.
+29%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
183 MB/s +5% 175 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
180 MB/s 332 MB/s Hugely faster deep queue read.
+84%
ADQ Write
Avg. 4K-64Thread Write Speed
271 MB/s Slightly faster deep queue write.
+7%
254 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
144 MB/s +1% 143 MB/s
Capacity
Capacity
256GB 256GB
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The Crucial MX100 is the first 16nm SSD to date. Aside from NAND, the MX100 shares the same hardware as its more expensive sibling, the M550. Comparing the MX100 and M550 shows that the two drives have similar read speeds but that the MX100 lags by nearly 50% at writing. The newer 16nm NAND reduces costs and accordingly the MX100 is the cheapest SSD (per GB) to date. In terms of performance the MX100 is a compromise which may or may not be worth making depending on individual circumstances. For typical desktop use including email, office documents and web browsing the MX100 is a great choice but power users should look elsewhere. Comparing the 250GB 840 EVO and 256GB MX100 shows that for a marginal premium, the Evo offers better write speeds. (Note: at 500GB they are more evenly matched) [Jun '14 SSDrivePro]

MORE DETAILS

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 3070 $500Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $390Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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