AdataASP550SS3-480GM-C
CrucialCT250MX200SSD1
$134

Controller: Silicon Motion SM2256. Flash Memory: SK Hynix 16nm TLC. Release date: Q3 2015.

 $134 

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

Real World Speed
Performance profile from 30,937 user samples
7,218 User Benchmarks
Best Bench: 96% 199GB free
Worst Bench: 56% 64GB free
Poor: 56% Great: 96%
SPEED RANK: 462nd / 1058
23,719 User Benchmarks
Best Bench: 113% 188GB free
Worst Bench: 65% 232GB free
Poor: 65% Great: 113%
SPEED RANK: 269th / 1058
Effective Speed
Effective SSD Speed
80.7 % 94.3 % Faster effective speed.
+17%
Read
Avg. Sequential Read Speed
466 MB/s Slightly faster read speed.
+9%
429 MB/s
Write
Avg. Sequential Write Speed
371 MB/s 408 MB/s Slightly faster write speed.
+10%
4K Read
Avg. 4K Random Read Speed
27.7 MB/s 28 MB/s +1%
4K Write
Avg. 4K Random Write Speed
77.6 MB/s 86 MB/s Faster random write.
+11%
Mixed
Avg. Sequential Mixed IO Speed
322 MB/s 340 MB/s Slightly faster mixed IO speed.
+6%
4K Mixed
Avg. 4K Random Mixed IO Speed
39.1 MB/s 39.4 MB/s +1%
SusWrite
Avg. Sustained Write Speed
146 MB/s 343 MB/s Hugely faster sustained write speed.
+135%
Read
Peak Sequential Read Speed
509 MB/s Slightly faster peak read speed.
+8%
472 MB/s
Write
Peak Sequential Write Speed
453 MB/s 469 MB/s +4%
4K Read
Peak 4K Random Read Speed
33.2 MB/s +1% 32.9 MB/s
4K Write
Peak 4K Random Write Speed
112 MB/s 117 MB/s +4%
Mixed
Peak Sequential Mixed IO Speed
392 MB/s +3% 382 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
49.5 MB/s +3% 48 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
167 MB/s 457 MB/s Hugely faster peak sustained write speed.
+174%
Market Share
Based on 46,975,506 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.01 % 0.03 % Hugely higher market share.
+200%
Value
Value For Money
14.1 % Much better value.
+44%
9.78 %
User Rating
UBM User Rating
51 % 55 % Slightly more popular.
+8%
Price
Price (score)
$129 +4% $134
Age
Newest
72 Months Slightly more recent.
+10%
80 Months
DQ Read
Peak 4K-64Thread Read Speed
347 MB/s 379 MB/s Slightly faster peak deep queue read.
+9%
DQ Write
Peak 4K-64Thread Write Speed
335 MB/s 361 MB/s Slightly faster peak deep queue write.
+8%
AS-SSD Total
AS-SSD Total Score
1,153 Pts 1,230 Pts Slightly stronger server IO.
+7%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
252 MB/s 257 MB/s +2%
ADQ Read
Avg. 4K-64Thread Read Speed
277 MB/s 310 MB/s Faster deep queue read.
+12%
ADQ Write
Avg. 4K-64Thread Write Speed
261 MB/s 290 MB/s Faster deep queue write.
+11%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
203 MB/s 212 MB/s +4%
Capacity
Capacity
480GB 250GB
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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

Solid State Drive Rankings (Price vs Performance) September 2021 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.

UserBenchmark of the month

How it works

  • - 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
  • - Compare your in-game FPS to other users with your hardware.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $350Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $78SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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