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AdataASU635SS-480GQ-R
CrucialCT525MX300SSD1
▲ 504 ▼

Release date ≈ Q2 2019.

VS
▲ 541,131 ▼

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

Effective Speed 
+22%
Real World Speed
Performance profile from 110,129 user samples
Benchmark your SSD here
5,092 User Benchmarks
Best Bench: 103% 447GB free
Worst Bench: 36% 236GB free (System drive)
Poor: 36% Great: 103%
SPEED RANK: 663rd / 1072
105,037 User Benchmarks
Best Bench: 99% 125GB free
Worst Bench: 65% 296GB free (System drive)
Poor: 65% Great: 99%
SPEED RANK: 393rd / 1072
Effective Speed
Effective SSD Speed 		70.5 % 85.8 % Faster effective speed.
+22%
Average Score 
+17%
Read
Avg. Sequential Read Speed 		413 MB/s +4% 397 MB/s
Write
Avg. Sequential Write Speed 		349 MB/s 404 MB/s Faster write speed.
+16%
4K Read
Avg. 4K Random Read Speed 		25.9 MB/s Slightly faster random read.
+7% 		24.3 MB/s
4K Write
Avg. 4K Random Write Speed 		65.4 MB/s 86.5 MB/s Much faster random write.
+32%
Mixed
Avg. Sequential Mixed IO Speed 		285 MB/s 345 MB/s Faster mixed IO speed.
+21%
4K Mixed
Avg. 4K Random Mixed IO Speed 		26.4 MB/s 35.2 MB/s Much faster random mixed IO.
+33%
SusWrite
Avg. Sustained Write Speed 		226 MB/s 290 MB/s Faster sustained write speed.
+28%
Peak Score 
+13%
Read
Peak Sequential Read Speed 		504 MB/s Faster peak read speed.
+16% 		436 MB/s
Write
Peak Sequential Write Speed 		463 MB/s 482 MB/s +4%
4K Read
Peak 4K Random Read Speed 		40.8 MB/s Much faster peak random read.
+45% 		28.2 MB/s
4K Write
Peak 4K Random Write Speed 		107 MB/s 117 MB/s Slightly faster peak random write.
+9%
Mixed
Peak Sequential Mixed IO Speed 		419 MB/s Slightly faster peak mixed IO speed.
+8% 		389 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		45.2 MB/s Slightly faster peak random mixed IO.
+7% 		42.3 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		431 MB/s Faster peak sustained write speed.
+29% 		335 MB/s
Value & Sentiment 
+18%
Market Share
Based on 75,664,152 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.02 % Hugely higher market share.
+100%
Value
Value For Money 		29.6 % Hugely better value.
+107% 		14.3 %
User Rating
UBM User Rating 		50 % 54 % Slightly more popular.
+8%
Price
Price (score) 		$40 Much cheaper.
+73% 		$150
Nice To Haves 
+37%
Age
Newest 		60+ Months Much more recent.
+36% 		94 Months
DQ Read
Peak 4K-64Thread Read Speed 		233 MB/s 351 MB/s Much faster peak deep queue read.
+51%
DQ Write
Peak 4K-64Thread Write Speed 		336 MB/s +3% 327 MB/s
AS-SSD Total
AS-SSD Total Score 		994 Pts 1,143 Pts Stronger server IO.
+15%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		254 MB/s 330 MB/s Faster peak deep queue mixed IO.
+30%
ADQ Read
Avg. 4K-64Thread Read Speed 		159 MB/s 301 MB/s Hugely faster deep queue read.
+89%
ADQ Write
Avg. 4K-64Thread Write Speed 		187 MB/s 272 MB/s Much faster deep queue write.
+45%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		136 MB/s 274 MB/s Hugely faster deep queue mixed IO.
+101%
Specifications 
Capacity
Capacity 		480GB 525GB
User Builds 
5,092
105,037
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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Solid State Drive Rankings (Price vs Performance) April 2024 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 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 value for money upgrades.

UserBenchmark of the month

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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

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 i5-13600K $279Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $134Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $182Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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