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WDWDS400T2X0E
CrucialCT250MX200SSD1
$134
▲ 72554 ▼

Release date: Q3 2022.

VS
▲ 554,480 ▼
 $134 

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC. Release date: Q1 2015.

Effective Speed 
+451%
Real World Speed
Performance profile from 35,136 user samples
Benchmark your SSD here
8,772 User Benchmarks
Great bench: 683% 3.5TB free
Poor bench: 288% 2.5TB free (System drive)
Poor: 288% Great: 683%
SPEED RANK: 7th / 1080
26,364 User Benchmarks
Best Bench: 113% 110GB free
Worst Bench: 69% 211GB free
Poor: 69% Great: 113%
SPEED RANK: 288th / 1080
Effective Speed
Effective SSD Speed 		522 % Hugely faster effective speed.
+451% 		94.8 %
Average Score 
+519%
Read
Avg. Sequential Read Speed 		3,793 MB/s Hugely faster read speed.
+790% 		426 MB/s
Write
Avg. Sequential Write Speed 		3,816 MB/s Hugely faster write speed.
+828% 		411 MB/s
4K Read
Avg. 4K Random Read Speed 		67.2 MB/s Hugely faster random read.
+140% 		28 MB/s
4K Write
Avg. 4K Random Write Speed 		189 MB/s Hugely faster random write.
+118% 		86.7 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		2,970 MB/s Hugely faster mixed IO speed.
+768% 		342 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		83.5 MB/s Hugely faster random mixed IO.
+112% 		39.3 MB/s
SusWrite
Avg. Sustained Write Speed 		3,370 MB/s Hugely faster sustained write speed.
+874% 		346 MB/s
Peak Score 
+581%
Read
Peak Sequential Read Speed 		4,696 MB/s Hugely faster peak read speed.
+899% 		470 MB/s
Write
Peak Sequential Write Speed 		4,940 MB/s Hugely faster peak write speed.
+951% 		470 MB/s
4K Read
Peak 4K Random Read Speed 		84.7 MB/s Hugely faster peak random read.
+160% 		32.6 MB/s
4K Write
Peak 4K Random Write Speed 		315 MB/s Hugely faster peak random write.
+162% 		120 MB/s
Mixed
Peak Sequential Mixed IO Speed 		3,586 MB/s Hugely faster peak mixed IO speed.
+839% 		382 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		113 MB/s Hugely faster peak random mixed IO.
+137% 		47.7 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		4,656 MB/s Hugely faster peak sustained write speed.
+917% 		458 MB/s
Value & Sentiment 
+918%
Market Share
Based on 77,488,056 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.25 % Insanely higher market share.
+1,150% 		0.02 %
Value
Value For Money 		260 % Insanely better value.
+2,541% 		9.84 %
User Rating
UBM User Rating 		72 % Much more popular.
+31% 		55 %
Price
Price (score) 		$265 $134 Much cheaper.
+49%
Nice To Haves 
+477%
Age
Newest 		27 Months Much more recent.
+77% 		118 Months
DQ Read
Peak 4K-64Thread Read Speed 		2,486 MB/s Hugely faster peak deep queue read.
+558% 		378 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		2,073 MB/s Hugely faster peak deep queue write.
+470% 		364 MB/s
AS-SSD Total
AS-SSD Total Score 		7,497 Pts Hugely stronger server IO.
+508% 		1,234 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		2,284 MB/s Hugely faster peak deep queue mixed IO.
+785% 		258 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		1,787 MB/s Hugely faster deep queue read.
+453% 		323 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		1,382 MB/s Hugely faster deep queue write.
+365% 		297 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		1,548 MB/s Hugely faster deep queue mixed IO.
+597% 		222 MB/s
Specifications 
Capacity
Capacity 		4TB 250GB
Conclusion 
Average Bench 522%
Average Bench 94.8%

The WD Black SN850X has a superb consumer performance profile. As well as offering solid burst speeds of 5 GB/s, the SN850X also offers respectable out of cache performance. At current prices (1TB $90 USD, 2TB $145 USD and 4TB $290 USD) the WD Black SN850X is our top value pick at every capacity. [Jun '24 SSDrivePro]

MORE DETAILS

The 250GB Crucial MX200 is successor to the hugely successful MX100. Both drives use the same NAND and controller but the new MX200 features Dynamic Write Acceleration (DWA) which is a new dynamically sized SLC cache. Samsung were the first to introduce SLC caching on the 840 Evo nearly two years ago so Crucial are somewhat late to the party. SLC caches generally only help performance in corner case real word scenarios and benchmarks. I prefer drives without SLC caches because they offer more consistent and sustainable real world IO. Comparing the MX100 and MX200 shows that the newer MX200 has a significantly faster peak write speed which is of course explained by the new DWA cache. Price is the deciding factor between the MX100 and MX200 so although the MX200 isn't priced aggressively yet, it will almost certainly move up the value rankings when retailers build stocks and subsequently cut prices. [Feb '15 SSDrivePro]

MORE DETAILS

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Solid State Drive Rankings (Price vs Performance) November 2024 SSD Rankings

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]

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
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 Frequently Asked Questions

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
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Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
What is the effective SSD speed index?
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The Best
CPUGPUSSD
Intel Core i5-12600K $169Nvidia RTX 4060 $296WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $110Nvidia RTX 4060-Ti $380WD Black SN850X M.2 1TB $75
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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