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SanDiskSDSSDXPS-240G
CrucialCT250MX200SSD1
$134
▲ 643,830 ▼

Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC. Release date: Q2 2014.

VS
Copy
▲ 664,467 ▼
 $134 

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

Effective Speed 
+4%
Real World Speed
Performance profile from 12,475 user samples
Benchmark your SSD here
5,016 User Benchmarks
Best Bench: 115% 223GB free
Worst Bench: 58% 38GB free (System drive)
Poor: 58% Great: 115%
SPEED RANK: 196th / 959
7,459 User Benchmarks
Best Bench: 112% 233GB free
Worst Bench: 64% 149GB free (System drive)
Poor: 64% Great: 112%
SPEED RANK: 168th / 959
Effective Speed
Effective SSD Speed 		90.7 % 94.7 % +4%
Average User Bench 
+9%
Read
Avg. Sequential Read Speed 		453 MB/s Slightly faster read speed.
+6% 		429 MB/s
Write
Avg. Sequential Write Speed 		406 MB/s 413 MB/s +2%
4K Read
Avg. 4K Random Read Speed 		27.9 MB/s 28 MB/s +0%
4K Write
Avg. 4K Random Write Speed 		75.6 MB/s 90 MB/s Faster random write.
+19%
Mixed
Avg. Sequential Mixed IO Speed 		258 MB/s 341 MB/s Much faster mixed IO speed.
+32%
4K Mixed
Avg. 4K Random Mixed IO Speed 		32.9 MB/s 39.6 MB/s Faster random mixed IO.
+20%
SusWrite
Avg. Sustained Write Speed 		356 MB/s Slightly faster sustained write speed.
+5% 		338 MB/s
Peak Lab Bench 
+2%
Read
Peak Sequential Read Speed 		510 MB/s Slightly faster peak read speed.
+9% 		470 MB/s
Write
Peak Sequential Write Speed 		478 MB/s +2% 468 MB/s
4K Read
Peak 4K Random Read Speed 		36.4 MB/s Slightly faster peak random read.
+9% 		33.3 MB/s
4K Write
Peak 4K Random Write Speed 		118 MB/s 123 MB/s +4%
Mixed
Peak Sequential Mixed IO Speed 		314 MB/s 382 MB/s Faster peak mixed IO speed.
+22%
4K Mixed
Peak 4K Random Mixed IO Speed 		43.3 MB/s 48.6 MB/s Slightly faster peak random mixed IO.
+12%
SusWrite
Peak Sequential Sustained Write 60s Average 		469 MB/s +4% 452 MB/s
Value & Sentiment 
+31%
Market Share
Based on 9,117,614 SSDs tested.
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.06 % 0.18 % Hugely higher market share.
+200%
Value
Value For Money 		101 % Much better value.
+38% 		73 %
User Rating
UBM User Rating 		64 % 66 % +3%
Price
Price (score) 		$79 Much cheaper.
+41% 		$134
Nice To Haves 
+17%
Age
Newest 		52 Months 45 Months Slightly more recent.
+13%
DQ Read
Peak 4K-64Thread Read Speed 		379 MB/s +0% 378 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		340 MB/s 360 MB/s Slightly faster peak deep queue write.
+6%
AS-SSD Total
AS-SSD Total Score 		1222 Pts 1,234 Pts +1%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		166 MB/s 257 MB/s Much faster peak deep queue mixed IO.
+55%
ADQ Read
Avg. 4K-64Thread Read Speed 		306 MB/s 306 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		270 MB/s 298 MB/s Slightly faster deep queue write.
+10%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		141 MB/s 210 MB/s Much faster deep queue mixed IO.
+49%
Specifications 
Capacity
Capacity 		240GB 250GB
Conclusion 
Average Bench 90.7%
Average Bench 94.7%
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The 240GB Sandisk Extreme Pro uses the same controller and NAND as its 13 months younger predecessor, the Extreme II. Comparing the Extreme II and Extreme Pro shows that average performance has increased by 10% but peak performance remains broadly unchanged. The Pro features an improved nCache which uses an SLC buffer to cache writes prior to writing them to the slower MLC NAND. In order to benefit from this improved caching, huge amounts of data need to be written for extended periods, an unlikely consumer scenario. Comparing core performance between the Samsung 840 Evo and Extreme Pro shows that the Extreme Pro averages around 12% faster than the Evo. The Extreme Pro also has a 10 year warranty but I wonder if SATA 3 will even be around at that time. Although the Extreme Pro has a superb performance profile it's not a game changer. [Jun '14 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) October 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]

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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.

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  • - 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.
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  • - Share your opinion by voting.

 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?
What is queue depth?
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?
How is the AS SSD write score calculated?
How is the AS SSD read score calculated?
How is the AS SSD total score calculated?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $350Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $98
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $157SanDisk Ultra Fit 32GB $12
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