SanDiskSDSSDXPS-240G
CrucialCT256MX100SSD1
$116

Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC. Release date: Q2 2014.

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 $116 

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

Real World Speed
Performance profile from 41,296 user samples
7,859 User Benchmarks
Best Bench: 112% 76GB free
Worst Bench: 60% 41GB free (System drive)
Poor: 60% Great: 112%
SPEED RANK: 259th / 1016
33,437 User Benchmarks
Best Bench: 97% 236GB free
Worst Bench: 60% 75GB free (System drive)
Poor: 60% Great: 97%
SPEED RANK: 379th / 1016
Effective Speed
Effective SSD Speed
91.5 % Slightly faster effective speed.
+10%
83.1 %
Read
Avg. Sequential Read Speed
461 MB/s Slightly faster read speed.
+11%
415 MB/s
Write
Avg. Sequential Write Speed
411 MB/s Faster write speed.
+28%
320 MB/s
4K Read
Avg. 4K Random Read Speed
28.8 MB/s Slightly faster random read.
+8%
26.7 MB/s
4K Write
Avg. 4K Random Write Speed
75.2 MB/s 91.5 MB/s Faster random write.
+22%
Mixed
Avg. Sequential Mixed IO Speed
260 MB/s 289 MB/s Slightly faster mixed IO speed.
+11%
4K Mixed
Avg. 4K Random Mixed IO Speed
33.3 MB/s 37.8 MB/s Slightly faster random mixed IO.
+14%
SusWrite
Avg. Sustained Write Speed
356 MB/s Much faster sustained write speed.
+53%
232 MB/s
Read
Peak Sequential Read Speed
509 MB/s Slightly faster peak read speed.
+12%
456 MB/s
Write
Peak Sequential Write Speed
480 MB/s Much faster peak write speed.
+45%
332 MB/s
4K Read
Peak 4K Random Read Speed
36 MB/s Faster peak random read.
+17%
30.9 MB/s
4K Write
Peak 4K Random Write Speed
115 MB/s 121 MB/s Slightly faster peak random write.
+5%
Mixed
Peak Sequential Mixed IO Speed
319 MB/s +1% 316 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
42.5 MB/s 44.4 MB/s +4%
SusWrite
Peak Sequential Sustained Write 60s Average
475 MB/s Much faster peak sustained write speed.
+44%
331 MB/s
Market Share
Based on 21,412,919 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.02 % 0.17 % Hugely higher market share.
+750%
Value
Value For Money
13.7 % Much better value.
+40%
9.78 %
User Rating
UBM User Rating
65 % +2% 64 %
Price
Price (score)
$79 Much cheaper.
+32%
$116
Age
Newest
67 Months 67 Months
DQ Read
Peak 4K-64Thread Read Speed
377 MB/s Much faster peak deep queue read.
+67%
226 MB/s
DQ Write
Peak 4K-64Thread Write Speed
337 MB/s Slightly faster peak deep queue write.
+8%
312 MB/s
AS-SSD Total
AS-SSD Total Score
1,212 Pts Much stronger server IO.
+30%
929 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
165 MB/s 183 MB/s Slightly faster peak deep queue mixed IO.
+11%
ADQ Read
Avg. 4K-64Thread Read Speed
308 MB/s Much faster deep queue read.
+79%
172 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
265 MB/s 272 MB/s +3%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
145 MB/s Slightly faster deep queue mixed IO.
+5%
138 MB/s
Capacity
Capacity
240GB 256GB
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The 240GB Sandisk Extreme Pro uses the same controller and NAND as its 13 months younger predecessor, the Extreme II. Comparing the Extreme II and Extreme Pro shows that average performance has increased by 10% but peak performance remains broadly unchanged. The Pro features an improved nCache which uses an SLC buffer to cache writes prior to writing them to the slower MLC NAND. In order to benefit from this improved caching, huge amounts of data need to be written for extended periods, an unlikely consumer scenario. Comparing core performance between the Samsung 840 Evo and Extreme Pro shows that the Extreme Pro averages around 12% faster than the Evo. The Extreme Pro also has a 10 year warranty but I wonder if SATA 3 will even be around at that time. Although the Extreme Pro has a superb performance profile it's not a game changer. [Jun '14 SSDrivePro]

MORE DETAILS

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

Solid State Drive Rankings (Price vs Performance) January 2020 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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9600K $205Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $45
Intel Core i5-9400F $150Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $375Nvidia RTX 2060 $349Samsung 850 Pro 512GB $249
HDDRAMUSB
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $653SanDisk Ultra Fit 32GB $14
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