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CrucialCT256MX100SSD1
€110
CrucialCT256M550SSD1
€145
▲ 639,913 ▼
 €110 

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

VS
Copy
▲ 547,474 ▼
 €145 

Controller: Marvell 88SS9189. Flash Memory: Micron Synchronous 20nm MLC.

Effective Speed 
+14%
Real World Speed
Performance profile from 14,475 user samples
Benchmark your SSD here
11,811 User Benchmarks
Best Bench: 95% 182GB free
Worst Bench: 59% 27GB free
Poor: 59% Great: 95%
SPEED RANK: 187th / 853
2,664 User Benchmarks
Best Bench: 112% 2GB free
Worst Bench: 65% 188GB free
Poor: 65% Great: 112%
SPEED RANK: 72nd / 853
Effective Speed
Effective SSD Speed 		80.3 % -14% 91.4 % Slightly faster effective speed.
+14%
Average User Bench 
+13%
Read
Avg. Sequential Read Speed 		490 MB/s -1% 497 MB/s +1%
Write
Avg. Sequential Write Speed 		320 MB/s -42% 453 MB/s Much faster write speed.
+42%
4K Read
Avg. 4K Random Read Speed 		25.7 MB/s +0% 25.6 MB/s -0%
4K Write
Avg. 4K Random Write Speed 		81.8 MB/s -3% 84.3 MB/s +3%
Mixed
Avg. Sequential Mixed IO Speed 		366 MB/s -23% 449 MB/s Faster mixed IO speed.
+23%
4K Mixed
Avg. 4K Random Mixed IO Speed 		24.3 MB/s -9% 26.5 MB/s Slightly faster random mixed IO.
+9%
Peak Lab Bench 
+15%
Read
Peak Sequential Read Speed 		521 MB/s -1% 525 MB/s +1%
Write
Peak Sequential Write Speed 		331 MB/s -45% 481 MB/s Much faster peak write speed.
+45%
4K Read
Peak 4K Random Read Speed 		31.1 MB/s -3% 32 MB/s +3%
4K Write
Peak 4K Random Write Speed 		120 MB/s -5% 126 MB/s +5%
Mixed
Peak Sequential Mixed IO Speed 		396 MB/s -24% 492 MB/s Faster peak mixed IO speed.
+24%
4K Mixed
Peak 4K Random Mixed IO Speed 		33.7 MB/s -13% 38.1 MB/s Slightly faster peak random mixed IO.
+13%
Value & Sentiment 
+216%
Market Share
Based on 3,095,853 SSDs tested.
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.64 % Hugely higher market share.
+814% 		0.07 % -814%
Value
Value For Money 		70.2 % Slightly better value.
+8% 		65.2 % -8%
User Rating
UBM User Rating 		63 % More popular.
+17% 		54 % -17%
Price
Price (score) 		€110 Cheaper.
+24% 		€145 -24%
Nice To Haves 
+29%
Age
Newest 		36 Months Slightly more recent.
+8% 		39 Months -8%
DQ Read
Peak 4K-64Thread Read Speed 		222 MB/s -67% 370 MB/s Much faster peak deep queue read.
+67%
DQ Write
Peak 4K-64Thread Write Speed 		303 MB/s -10% 334 MB/s Slightly faster peak deep queue write.
+10%
AS-SSD Total
AS-SSD Total Score 		920 Pts -31% 1,204 Pts Much stronger server IO.
+31%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		51.6 MB/s -47% 75.9 MB/s Much faster peak deep queue mixed IO.
+47%
ADQ Read
Avg. 4K-64Thread Read Speed 		123 MB/s -44% 177 MB/s Much faster deep queue read.
+44%
ADQ Write
Avg. 4K-64Thread Write Speed 		201 MB/s -3% 207 MB/s +3%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		35.3 MB/s -35% 47.7 MB/s Much faster deep queue mixed IO.
+35%
Specifications 
Capacity
Capacity 		256GB 256GB
Conclusion 
Average Bench 80.3%
Average Bench 91.4%
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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 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

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Solid State Drive Rankings (Price vs Performance) June 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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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.

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 Frequently Asked Questions

Storage Devices FAQ
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What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
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What is 4K random write speed?
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