SanDiskSDSSDHII-240G-G25
CrucialCT256MX100SSD1
$116

Controller: Marvell 88SS9187. Memory: SanDisk 19nm TLC. Release date: Q3 2014.

 $116 

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

Real World Speed
Performance profile from 36,956 user samples
16,680 User Benchmarks
Best Bench: 101% 223GB free
Worst Bench: 55% 158GB free (System drive)
Poor: 55% Great: 101%
SPEED RANK: 311th / 956
20,276 User Benchmarks
Best Bench: 100% 413GB free
Worst Bench: 58% 163GB free (System drive)
Poor: 58% Great: 100%
SPEED RANK: 268th / 956
Effective Speed
Effective SSD Speed
80.6 % 83.2 % +3%
Read
Avg. Sequential Read Speed
446 MB/s Slightly faster read speed.
+9%
411 MB/s
Write
Avg. Sequential Write Speed
362 MB/s Slightly faster write speed.
+15%
316 MB/s
4K Read
Avg. 4K Random Read Speed
28.8 MB/s Slightly faster random read.
+7%
26.8 MB/s
4K Write
Avg. 4K Random Write Speed
75.2 MB/s 94.9 MB/s Faster random write.
+26%
Mixed
Avg. Sequential Mixed IO Speed
248 MB/s 285 MB/s Slightly faster mixed IO speed.
+15%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.3 MB/s 38 MB/s Slightly faster random mixed IO.
+8%
SusWrite
Avg. Sustained Write Speed
175 MB/s 225 MB/s Faster sustained write speed.
+29%
Read
Peak Sequential Read Speed
498 MB/s Slightly faster peak read speed.
+10%
453 MB/s
Write
Peak Sequential Write Speed
469 MB/s Much faster peak write speed.
+41%
332 MB/s
4K Read
Peak 4K Random Read Speed
39.3 MB/s Faster peak random read.
+25%
31.4 MB/s
4K Write
Peak 4K Random Write Speed
119 MB/s 131 MB/s Slightly faster peak random write.
+10%
Mixed
Peak Sequential Mixed IO Speed
346 MB/s Slightly faster peak mixed IO speed.
+9%
318 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
49.7 MB/s Slightly faster peak random mixed IO.
+9%
45.5 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
240 MB/s 329 MB/s Much faster peak sustained write speed.
+37%
Market Share
Based on 7,979,188 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.3 % 0.36 % Higher market share.
+20%
Value
Value For Money
98.1 % Much better value.
+35%
72.8 %
User Rating
UBM User Rating
64 % 64 %
Price
Price (score)
$70 Much cheaper.
+40%
$116
Age
Newest
47 Months Slightly more recent.
+6%
50 Months
DQ Read
Peak 4K-64Thread Read Speed
389 MB/s Much faster peak deep queue read.
+58%
246 MB/s
DQ Write
Peak 4K-64Thread Write Speed
307 MB/s 313 MB/s +2%
AS-SSD Total
AS-SSD Total Score
1,208 Pts Stronger server IO.
+24%
971 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
253 MB/s Much faster peak deep queue mixed IO.
+38%
183 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
318 MB/s Hugely faster deep queue read.
+85%
172 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
245 MB/s 277 MB/s Slightly faster deep queue write.
+13%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
206 MB/s Much faster deep queue mixed IO.
+55%
133 MB/s
Capacity
Capacity
240GB 256GB
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The Sandisk Ultra II sits above Sandisk's Ultra Plus and below their Extreme Pro. The Ultra Plus would probably have been phased out completely were it not for its continued success within budget space. The Ultra II is the first Sandisk drive to utilize cheaper (and slower) TLC NAND. Similarly to the Extreme Pro, the Ultra II utilizes an nCache which operates a portion of the NAND in simulated SLC mode. This strategy also matches the one employed by Samsung's now 14 months old Evo. Comparing the Ultra II and Evo shows broad performance equivalence which given the Ultra II's 15% price discount makes it the better choice today. That said it's probably worth waiting for the release of the 850 Evo which will pack another 14 months of Samsung's market leading R&D and will probably steal the show. [Sep '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) August 2018 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 i7-8700K $356Nvidia GTX 1070 $380Samsung 850 Evo 250GB $70
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $120
Intel Core i5-8600K $249AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $155SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $901SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $175SanDisk Ultra Fit 32GB $12
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