CrucialCT256MX100SSD1
$116
SamsungMZ-7PD256BW
 $116 

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC.

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC.

Real World Speed
Performance profile from 29,206 user samples
13,142 User Benchmarks
Best Bench: 95% 105GB free
Worst Bench: 59% 170GB free
Poor: 59% Great: 95%
SPEED RANK: 188th / 859
16,064 User Benchmarks
Best Bench: 107% 142GB free
Worst Bench: 53% 132GB free
Poor: 53% Great: 107%
SPEED RANK: 150th / 859
Effective Speed
Effective SSD Speed
80.7 % -3% 83.2 % +3%
Read
Avg. Sequential Read Speed
493 MB/s +1% 487 MB/s -1%
Write
Avg. Sequential Write Speed
321 MB/s -11% 357 MB/s Slightly faster write speed.
+11%
4K Read
Avg. 4K Random Read Speed
25.6 MB/s -12% 28.6 MB/s Slightly faster random read.
+12%
4K Write
Avg. 4K Random Write Speed
83.1 MB/s Slightly faster random write.
+6%
78.1 MB/s -6%
Mixed
Avg. Sequential Mixed IO Speed
367 MB/s -6% 388 MB/s Slightly faster mixed IO speed.
+6%
4K Mixed
Avg. 4K Random Mixed IO Speed
24.7 MB/s Slightly faster random mixed IO.
+12%
22 MB/s -12%
Read
Peak Sequential Read Speed
523 MB/s -0% 524 MB/s +0%
Write
Peak Sequential Write Speed
332 MB/s -48% 491 MB/s Much faster peak write speed.
+48%
4K Read
Peak 4K Random Read Speed
31.1 MB/s -17% 36.4 MB/s Faster peak random read.
+17%
4K Write
Peak 4K Random Write Speed
122 MB/s +4% 117 MB/s -4%
Mixed
Peak Sequential Mixed IO Speed
397 MB/s -28% 508 MB/s Faster peak mixed IO speed.
+28%
4K Mixed
Peak 4K Random Mixed IO Speed
33.4 MB/s Faster peak random mixed IO.
+16%
28.8 MB/s -16%
Market Share
Based on 3,811,664 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.6 % -25% 0.75 % Higher market share.
+25%
Value
Value For Money
70.6 % Much better value.
+61%
43.9 % -61%
User Rating
UBM User Rating
64 % 0% 64 % 0%
Price
Price (score)
$116 Much cheaper.
+49%
$228 -49%
Age
Newest
39 Months Much more recent.
+34%
59 Months -34%
DQ Read
Peak 4K-64Thread Read Speed
226 MB/s -65% 373 MB/s Much faster peak deep queue read.
+65%
DQ Write
Peak 4K-64Thread Write Speed
306 MB/s -5% 320 MB/s +5%
AS-SSD Total
AS-SSD Total Score
931 Pts -28% 1,195 Pts Stronger server IO.
+28%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
51.2 MB/s -75% 89.8 MB/s Much faster peak deep queue mixed IO.
+75%
ADQ Read
Avg. 4K-64Thread Read Speed
121 MB/s -62% 196 MB/s Much faster deep queue read.
+62%
ADQ Write
Avg. 4K-64Thread Write Speed
197 MB/s Slightly faster deep queue write.
+5%
187 MB/s -5%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
35.2 MB/s -50% 52.9 MB/s Much faster deep queue mixed IO.
+50%
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 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
Intel Core i7-7700K $325Nvidia GTX 1070 $410Samsung 850 Evo 250GB $88
AMD Ryzen 7 1700 $270AMD RX 480 $350Samsung 850 Pro 256GB $119
Intel Core i5-7600K $210Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $150
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $724SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $70Corsair Vengeance LPX DDR4 3000 C15 2x8GB $152SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $57HyperX Fury DDR4 2133 C14 2x8GB $144SanDisk Extreme 16GB $20
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