CrucialCT525MX300SSD1
AdataASP550SS3-240GM-C

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

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

Real World Speed
Performance profile from 121,636 user samples
92,868 User Benchmarks
Best Bench: 99% 432GB free
Worst Bench: 60% 268GB free (System drive)
Poor: 60% Great: 99%
SPEED RANK: 384th / 1058
28,768 User Benchmarks
Best Bench: 93% 67GB free
Worst Bench: 51% 94GB free
Poor: 51% Great: 93%
SPEED RANK: 508th / 1058
Effective Speed
Effective SSD Speed
85.3 % Slightly faster effective speed.
+10%
77.6 %
Read
Avg. Sequential Read Speed
400 MB/s 459 MB/s Faster read speed.
+15%
Write
Avg. Sequential Write Speed
400 MB/s Faster write speed.
+14%
352 MB/s
4K Read
Avg. 4K Random Read Speed
24.4 MB/s 28.4 MB/s Faster random read.
+16%
4K Write
Avg. 4K Random Write Speed
85.3 MB/s Faster random write.
+10%
77.5 MB/s
Mixed
Avg. Sequential Mixed IO Speed
344 MB/s 346 MB/s +1%
4K Mixed
Avg. 4K Random Mixed IO Speed
35.1 MB/s 39.4 MB/s Faster random mixed IO.
+12%
SusWrite
Avg. Sustained Write Speed
285 MB/s Hugely faster sustained write speed.
+219%
89.4 MB/s
Read
Peak Sequential Read Speed
445 MB/s 509 MB/s Faster peak read speed.
+14%
Write
Peak Sequential Write Speed
481 MB/s Slightly faster peak write speed.
+6%
455 MB/s
4K Read
Peak 4K Random Read Speed
28.1 MB/s 35.1 MB/s Faster peak random read.
+25%
4K Write
Peak 4K Random Write Speed
115 MB/s +3% 112 MB/s
Mixed
Peak Sequential Mixed IO Speed
389 MB/s 406 MB/s +4%
4K Mixed
Peak 4K Random Mixed IO Speed
42.3 MB/s 50.5 MB/s Faster peak random mixed IO.
+19%
SusWrite
Peak Sequential Sustained Write 60s Average
333 MB/s Hugely faster peak sustained write speed.
+185%
117 MB/s
Market Share
Based on 47,035,752 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.13 % Hugely higher market share.
+160%
0.05 %
Value
Value For Money
9.27 % 12.2 % Much better value.
+32%
User Rating
UBM User Rating
54 % +2% 53 %
Price
Price (score)
$265 $74 Much cheaper.
+72%
Age
Newest
63 Months More recent.
+12%
72 Months
DQ Read
Peak 4K-64Thread Read Speed
353 MB/s +5% 337 MB/s
DQ Write
Peak 4K-64Thread Write Speed
327 MB/s 342 MB/s +5%
AS-SSD Total
AS-SSD Total Score
1,144 Pts 1,149 Pts +0%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
331 MB/s Much faster peak deep queue mixed IO.
+31%
253 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
302 MB/s Slightly faster deep queue read.
+9%
278 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
269 MB/s +1% 267 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
273 MB/s Much faster deep queue mixed IO.
+30%
210 MB/s
Capacity
Capacity
525GB 240GB
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 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
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 $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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