CrucialCT256MX100SSD1
$116
CrucialCT256M550SSD1
$152
 $116 

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

 $152 

Controller: Marvell 88SS9189. Flash Memory: Micron Synchronous 20nm MLC. Release date: Q1 2014.

Real World Speed
Performance profile from 24,940 user samples
20,940 User Benchmarks
Best Bench: 97% 238GB free
Worst Bench: 59% 107GB free (System drive)
Poor: 59% Great: 97%
SPEED RANK: 321st / 964
4,000 User Benchmarks
Best Bench: 112% 215GB free
Worst Bench: 60% 38GB free (System drive)
Poor: 60% Great: 112%
SPEED RANK: 196th / 964
Effective Speed
Effective SSD Speed
81.7 % 91.1 % Slightly faster effective speed.
+12%
Read
Avg. Sequential Read Speed
409 MB/s 425 MB/s +4%
Write
Avg. Sequential Write Speed
315 MB/s 420 MB/s Much faster write speed.
+33%
4K Read
Avg. 4K Random Read Speed
26.5 MB/s 27.1 MB/s +2%
4K Write
Avg. 4K Random Write Speed
91.9 MB/s +2% 90 MB/s
Mixed
Avg. Sequential Mixed IO Speed
283 MB/s 309 MB/s Slightly faster mixed IO speed.
+9%
4K Mixed
Avg. 4K Random Mixed IO Speed
37.3 MB/s 37.6 MB/s +1%
SusWrite
Avg. Sustained Write Speed
216 MB/s 294 MB/s Much faster sustained write speed.
+36%
Read
Peak Sequential Read Speed
455 MB/s 508 MB/s Slightly faster peak read speed.
+12%
Write
Peak Sequential Write Speed
332 MB/s 473 MB/s Much faster peak write speed.
+42%
4K Read
Peak 4K Random Read Speed
31.2 MB/s 32.2 MB/s +3%
4K Write
Peak 4K Random Write Speed
126 MB/s +2% 124 MB/s
Mixed
Peak Sequential Mixed IO Speed
316 MB/s 391 MB/s Faster peak mixed IO speed.
+24%
4K Mixed
Peak 4K Random Mixed IO Speed
45.1 MB/s 47.2 MB/s +5%
SusWrite
Peak Sequential Sustained Write 60s Average
328 MB/s 447 MB/s Much faster peak sustained write speed.
+36%
Market Share
Based on 9,664,924 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.31 % Hugely higher market share.
+520%
0.05 %
Value
Value For Money
71.4 % Slightly better value.
+10%
65 %
User Rating
UBM User Rating
64 % Slightly more popular.
+14%
56 %
Price
Price (score)
$116 Cheaper.
+24%
$152
Age
Newest
53 Months Slightly more recent.
+5%
56 Months
DQ Read
Peak 4K-64Thread Read Speed
259 MB/s 388 MB/s Much faster peak deep queue read.
+50%
DQ Write
Peak 4K-64Thread Write Speed
313 MB/s 357 MB/s Slightly faster peak deep queue write.
+14%
AS-SSD Total
AS-SSD Total Score
985 Pts 1,249 Pts Stronger server IO.
+27%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
182 MB/s 240 MB/s Much faster peak deep queue mixed IO.
+32%
ADQ Read
Avg. 4K-64Thread Read Speed
177 MB/s 308 MB/s Much faster deep queue read.
+74%
ADQ Write
Avg. 4K-64Thread Write Speed
271 MB/s 292 MB/s Slightly faster deep queue write.
+8%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
135 MB/s 200 MB/s Much faster deep queue mixed IO.
+48%
Capacity
Capacity
256GB 256GB
ADVERTISEMENT

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 Crucial M550 is a welcome improvement over the 240GB M500. The new Marvel 88SS9189 controller has addressed our primary concern with the M500 which was poor sequential write speed. With sequential read/write speeds of 510/478 MB/s the M550 has a healthy core performance profile. Comparing the M550 and M500 shows that the new M550 leads on nearly every single performance metric. Unfortunately the M550 is priced significantly higher than the M500 but prices will likely drop as retailers build up stocks of the new M550. A key comparable for the M550 is the similarly priced market leading Samsung Evo. Comparing the Evo and M550 shows that the Evo is around 11% slower in terms of effective speed[Mar '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) November 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]

ADVERTISEMENT

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 $359Nvidia GTX 1070 $340Samsung 850 Evo 250GB $80
AMD Ryzen 5 1600 $130Nvidia GTX 1060-6GB $234Samsung 850 Evo 500GB $97
Intel Core i5-8600K $237AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $130SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback