CrucialCT250MX200SSD1
$134
SamsungMZ-7PD256BW
 $134 

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

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC. Release date: Q4 2012.

Real World Speed
Performance profile from 99,483 user samples
26,364 User Benchmarks
Best Bench: 113% 110GB free
Worst Bench: 69% 211GB free
Poor: 69% Great: 113%
SPEED RANK: 288th / 1080
73,119 User Benchmarks
Best Bench: 116% 238GB free
Worst Bench: 68% 11GB free (System drive)
Poor: 68% Great: 116%
SPEED RANK: 287th / 1080
Effective Speed
Effective SSD Speed
94.8 % 95 % +0%
Read
Avg. Sequential Read Speed
426 MB/s 459 MB/s Slightly faster read speed.
+8%
Write
Avg. Sequential Write Speed
411 MB/s Faster write speed.
+12%
367 MB/s
4K Read
Avg. 4K Random Read Speed
28 MB/s 31 MB/s Faster random read.
+11%
4K Write
Avg. 4K Random Write Speed
86.7 MB/s +1% 85.6 MB/s
Mixed
Avg. Sequential Mixed IO Speed
342 MB/s Faster mixed IO speed.
+13%
303 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
39.3 MB/s 39.5 MB/s +1%
SusWrite
Avg. Sustained Write Speed
346 MB/s Faster sustained write speed.
+11%
312 MB/s
Read
Peak Sequential Read Speed
470 MB/s 510 MB/s Slightly faster peak read speed.
+9%
Write
Peak Sequential Write Speed
470 MB/s 480 MB/s +2%
4K Read
Peak 4K Random Read Speed
32.6 MB/s 36.1 MB/s Faster peak random read.
+11%
4K Write
Peak 4K Random Write Speed
120 MB/s Slightly faster peak random write.
+5%
114 MB/s
Mixed
Peak Sequential Mixed IO Speed
382 MB/s +4% 368 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
47.7 MB/s +0% 47.6 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
458 MB/s 477 MB/s +4%
Market Share
Based on 76,226,743 SSDs tested
Market Share
Market Share (trailing 30 days)
0.05 % 0.06 % Higher market share.
+20%
Value
Value For Money
9.84 % Better value.
+20%
8.21 %
User Rating
UBM User Rating
55 % +2% 54 %
Price
Price (score)
$134 Cheaper.
+23%
$175
Age
Newest
113 Months More recent.
+19%
140 Months
DQ Read
Peak 4K-64Thread Read Speed
378 MB/s 385 MB/s +2%
DQ Write
Peak 4K-64Thread Write Speed
364 MB/s Slightly faster peak deep queue write.
+9%
334 MB/s
AS-SSD Total
AS-SSD Total Score
1,234 Pts +1% 1,221 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
258 MB/s Much faster peak deep queue mixed IO.
+47%
176 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
323 MB/s 346 MB/s Slightly faster deep queue read.
+7%
ADQ Write
Avg. 4K-64Thread Write Speed
297 MB/s Faster deep queue write.
+13%
262 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
222 MB/s Much faster deep queue mixed IO.
+51%
147 MB/s
Capacity
Capacity
250GB 256GB
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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

The 840 Pro is stunning. Samsung have created a completely in-house package including both the controller and their own new 21nm toggle mode NAND. On release (Oct '12) this was the fastest performing deep queue depth consumer grade SSD available. Fast forward six months (Apr '13) and the 840 Pro still holds both the random read/write deep queue depth speed records of 384 MB/s and 326 MB/s, impressive considering how fast the SSD space tends to move. There are no obvious weaknesses, in-fact the 840 pro takes first place in nearly all of the speed categories and is only seriously rivalled by one drive, the OCZ Vector. To conclude, in terms of both outright performance, particularly server orientated, and value for money the 256GB and 128GB 840 Pros are amongst the top handful of drives currently available. [Jun '13 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) June 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]

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