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CrucialCT250BX100SSD1
CrucialCT275MX300SSD1
▲ 543,430 ▼

Controller: Silicon Motion SM2246EN. Flash Memory: Micron 16nm MLC. Release date: Q1 2015.

VS
▲ 552,236 ▼

Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC. Release date: Q2 2016.

Effective Speed 
+9%
Real World Speed
Performance profile from 110,471 user samples
Benchmark your SSD here
42,930 User Benchmarks
Best Bench: 103% 139GB free (System drive)
Worst Bench: 59% 134GB free (System drive)
Poor: 59% Great: 103%
SPEED RANK: 384th / 1080
67,541 User Benchmarks
Best Bench: 95% 67GB free
Worst Bench: 53% 38GB free (System drive)
Poor: 53% Great: 95%
SPEED RANK: 500th / 1080
Effective Speed
Effective SSD Speed 		86.6 % Slightly faster effective speed.
+9% 		79.4 %
Average Score 
+2%
Read
Avg. Sequential Read Speed 		475 MB/s Slightly faster read speed.
+10% 		433 MB/s
Write
Avg. Sequential Write Speed 		349 MB/s 380 MB/s Slightly faster write speed.
+9%
4K Read
Avg. 4K Random Read Speed 		26.2 MB/s Slightly faster random read.
+8% 		24.2 MB/s
4K Write
Avg. 4K Random Write Speed 		76.9 MB/s 84.7 MB/s Faster random write.
+10%
Mixed
Avg. Sequential Mixed IO Speed 		284 MB/s 339 MB/s Faster mixed IO speed.
+19%
4K Mixed
Avg. 4K Random Mixed IO Speed 		35.8 MB/s Slightly faster random mixed IO.
+6% 		33.9 MB/s
SusWrite
Avg. Sustained Write Speed 		278 MB/s Faster sustained write speed.
+28% 		217 MB/s
Peak Score 
+0%
Read
Peak Sequential Read Speed 		514 MB/s Slightly faster peak read speed.
+9% 		472 MB/s
Write
Peak Sequential Write Speed 		370 MB/s 478 MB/s Faster peak write speed.
+29%
4K Read
Peak 4K Random Read Speed 		30.3 MB/s Slightly faster peak random read.
+7% 		28.2 MB/s
4K Write
Peak 4K Random Write Speed 		110 MB/s 117 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed 		338 MB/s 402 MB/s Faster peak mixed IO speed.
+19%
4K Mixed
Peak 4K Random Mixed IO Speed 		44.1 MB/s Slightly faster peak random mixed IO.
+7% 		41.4 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		364 MB/s Much faster peak sustained write speed.
+33% 		273 MB/s
Value & Sentiment 
+85%
Market Share
Based on 77,604,214 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.02 % 0.06 % Hugely higher market share.
+200%
Value
Value For Money 		12.1 % 21.9 % Hugely better value.
+82%
User Rating
UBM User Rating 		54 % 55 % +2%
Price
Price (score) 		$91 $40 Much cheaper.
+56%
Nice To Haves 
+8%
Age
Newest 		118 Months 101 Months More recent.
+14%
DQ Read
Peak 4K-64Thread Read Speed 		281 MB/s Faster peak deep queue read.
+19% 		236 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		324 MB/s 326 MB/s +1%
AS-SSD Total
AS-SSD Total Score 		1,023 Pts Slightly stronger server IO.
+5% 		972 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		198 MB/s 306 MB/s Much faster peak deep queue mixed IO.
+55%
ADQ Read
Avg. 4K-64Thread Read Speed 		259 MB/s Faster deep queue read.
+20% 		216 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		274 MB/s Slightly faster deep queue write.
+7% 		257 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		173 MB/s 245 MB/s Much faster deep queue mixed IO.
+42%
Specifications 
Capacity
Capacity 		250GB 275GB
Conclusion 
Average Bench 86.6%
Average Bench 79.4%

The 250GB Crucial BX100 SSD is the value orientated variant of Crucial's M range of SSDs. The BX100 uses the same NAND as its premium MX200 sibling but the BX100 uses a Silicon Motion controller as opposed to the Marvel controller found in the MX range. Feature wise the BX100 is missing SLC caching and there is no hardware encryption (so security frameworks such as windows Bitlocker will operate less efficiently). In terms of I/O performance the BX100 looks promising. Comparing the BX100 and MX100 shows that the newer BX100 may be faster than its predecessor but as yet there are insufficient user benchmarks to draw any definitive conclusions. The BX100 has only just started hitting the shelves so there's plenty of room for price reductions from its already reasonable price tag. I will revisit this review when I have more performance data for the BX100. [Jan '15 SSDrivePro]

MORE DETAILS

The 275GB Crucial MX300 supersedes the MX200. Unlike its predecessor, the MX300 is TLC based and therefore suffers from weak write speeds in comparison to MLC drives. The MX300 utilises a sophisticated algorithm to enable fast burst write speeds provided that there is sufficient free space on the disk but as the drive fills up write performance drops to the relatively poor levels seen on other TLC drives (similar to mechanical drives). At current prices (70 USD) the MX300 competes well with other low end drives such as the OCZ Trion, Adata SP550 and Samsung 750 EVO. As stocks build the MX300 is likely to see further price cuts, so it could become a very interesting value proposition. See the current value leaders here. [Sep '16 SSDrivePro]

MORE DETAILS

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Welcome to our 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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 Frequently Asked Questions

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Solid State Drives
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The Best
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Intel Core i5-13600K $210Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $125
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Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $330
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