CrucialCT256MX100SSD1
$116
SamsungMZ-7KE256BW
 $116 

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

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND

Real World Speed
Performance profile from 60,582 user samples
17,892 User Benchmarks
Best Bench: 94% 77GB free
Worst Bench: 61% 56GB free
Poor: 61% Great: 94%
SPEED RANK: 242nd / 921
42,690 User Benchmarks
Best Bench: 121% 159GB free
Worst Bench: 72% 70GB free
Poor: 72% Great: 121%
SPEED RANK: 105th / 921
Effective Speed
Effective SSD Speed
80.3 % 97.6 % Faster effective speed.
+21%
Read
Avg. Sequential Read Speed
495 MB/s 505 MB/s +2%
Write
Avg. Sequential Write Speed
324 MB/s 441 MB/s Much faster write speed.
+36%
4K Read
Avg. 4K Random Read Speed
25.1 MB/s 32.4 MB/s Faster random read.
+29%
4K Write
Avg. 4K Random Write Speed
81.7 MB/s 86.2 MB/s Slightly faster random write.
+6%
Mixed
Avg. Sequential Mixed IO Speed
370 MB/s 462 MB/s Faster mixed IO speed.
+25%
4K Mixed
Avg. 4K Random Mixed IO Speed
24.5 MB/s 33.1 MB/s Much faster random mixed IO.
+35%
Read
Peak Sequential Read Speed
522 MB/s 528 MB/s +1%
Write
Peak Sequential Write Speed
332 MB/s 502 MB/s Much faster peak write speed.
+51%
4K Read
Peak 4K Random Read Speed
30.4 MB/s 42.9 MB/s Much faster peak random read.
+41%
4K Write
Peak 4K Random Write Speed
115 MB/s 122 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed
396 MB/s 514 MB/s Faster peak mixed IO speed.
+30%
4K Mixed
Peak 4K Random Mixed IO Speed
33.4 MB/s 51.2 MB/s Much faster peak random mixed IO.
+53%
Market Share
Based on 6,476,257 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.41 % 0.75 % Hugely higher market share.
+83%
Value
Value For Money
70.2 % Slightly better value.
+6%
66.1 %
User Rating
UBM User Rating
64 % 99 % Much more popular.
+55%
Price
Price (score)
$116 Cheaper.
+29%
$163
Age
Newest
46 Months 45 Months +2%
DQ Read
Peak 4K-64Thread Read Speed
222 MB/s 375 MB/s Much faster peak deep queue read.
+69%
DQ Write
Peak 4K-64Thread Write Speed
301 MB/s 339 MB/s Slightly faster peak deep queue write.
+13%
AS-SSD Total
AS-SSD Total Score
912 Pts 1,237 Pts Much stronger server IO.
+36%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
53.2 MB/s 161 MB/s Hugely faster peak deep queue mixed IO.
+203%
ADQ Read
Avg. 4K-64Thread Read Speed
120 MB/s 189 MB/s Much faster deep queue read.
+58%
ADQ Write
Avg. 4K-64Thread Write Speed
193 MB/s 210 MB/s Slightly faster deep queue write.
+9%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
36 MB/s 81.9 MB/s Hugely faster deep queue mixed IO.
+128%
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 256GB Samsung 850 Pro is the fastest consumer SSD we have seen to date. Thanks to Samsung's new 3D V-NAND the 850 Pro has lower power consumption and better performance, albeit marginally, than both the 840 Evo and 840 Pro. Looking at the benchmark figures for the 840 and 850 Pros shows that the effective performance improvement is 10% whereas the 850 Pro beats the 840 Evo by 16%. These drives effectively saturate SATA 3.0 making it difficult to distinguish between them in day-to-day use. At current prices the 850 Pro is prohibitively expensive, prices need to drop by 15% before it approaches the 840 Pro from a value perspective. Samsung may release a value orientated 850 Evo soon, but for now "most" users are better off with the 840 Pro. [Oct '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) April 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $90
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $290Samsung 850 Evo 500GB $137
AMD Ryzen 5 1600 $176AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $193SanDisk Extreme 16GB $18
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