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AdataASP920SS3-256GM-C
CrucialCT256MX100SSD1
$116
▲ 53529 ▼

Controller: Marvell 88SS9189. Flash Memory: Micron 20nm MLC. Release date: Q2 2014.

VS
▲ 549,923 ▼
 $116 

Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC. Release date: Q2 2014.

Effective Speed 
+5%
Real World Speed
Performance profile from 58,591 user samples
Benchmark your SSD here
2,823 User Benchmarks
Best Bench: 99% 179GB free (System drive)
Worst Bench: 52% 32GB free
Poor: 52% Great: 99%
SPEED RANK: 498th / 1072
55,768 User Benchmarks
Best Bench: 97% 123GB free
Worst Bench: 65% 74GB free
Poor: 65% Great: 97%
SPEED RANK: 443rd / 1072
Effective Speed
Effective SSD Speed 		79 % 82.8 % +5%
Average Score 
+10%
Read
Avg. Sequential Read Speed 		429 MB/s +3% 417 MB/s
Write
Avg. Sequential Write Speed 		293 MB/s 318 MB/s Slightly faster write speed.
+9%
4K Read
Avg. 4K Random Read Speed 		25 MB/s 26.7 MB/s Slightly faster random read.
+7%
4K Write
Avg. 4K Random Write Speed 		73.5 MB/s 88.7 MB/s Faster random write.
+21%
Mixed
Avg. Sequential Mixed IO Speed 		240 MB/s 289 MB/s Faster mixed IO speed.
+20%
4K Mixed
Avg. 4K Random Mixed IO Speed 		31.5 MB/s 37.4 MB/s Faster random mixed IO.
+19%
SusWrite
Avg. Sustained Write Speed 		233 MB/s +1% 231 MB/s
Peak Score 
+0%
Read
Peak Sequential Read Speed 		486 MB/s Slightly faster peak read speed.
+7% 		455 MB/s
Write
Peak Sequential Write Speed 		346 MB/s +5% 331 MB/s
4K Read
Peak 4K Random Read Speed 		30 MB/s 30.5 MB/s +2%
4K Write
Peak 4K Random Write Speed 		111 MB/s 118 MB/s Slightly faster peak random write.
+6%
Mixed
Peak Sequential Mixed IO Speed 		307 MB/s 316 MB/s +3%
4K Mixed
Peak 4K Random Mixed IO Speed 		42.2 MB/s 44.2 MB/s +5%
SusWrite
Peak Sequential Sustained Write 60s Average 		342 MB/s +4% 329 MB/s
Value & Sentiment 
+101%
Market Share
Based on 75,706,460 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.04 % Hugely higher market share.
+300%
Value
Value For Money 		6.11 % 9.75 % Much better value.
+60%
User Rating
UBM User Rating 		53 % 54 % +2%
Price
Price (score) 		$203 $116 Much cheaper.
+43%
Nice To Haves 
+14%
Age
Newest 		120 Months 118 Months +2%
DQ Read
Peak 4K-64Thread Read Speed 		374 MB/s Much faster peak deep queue read.
+63% 		229 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		320 MB/s +3% 312 MB/s
AS-SSD Total
AS-SSD Total Score 		1,152 Pts Stronger server IO.
+24% 		930 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		211 MB/s Faster peak deep queue mixed IO.
+16% 		182 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		285 MB/s Much faster deep queue read.
+57% 		182 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		238 MB/s 280 MB/s Faster deep queue write.
+18%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		108 MB/s 144 MB/s Much faster deep queue mixed IO.
+33%
Specifications 
Capacity
Capacity 		256GB 256GB
Conclusion 
Average Bench 79%
Average Bench 82.8%
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The ADATA SP920 shares the same controller (Marvel 88SS9189), and for capacities over 256GB the same NAND configuration as the excellent Crucial M550. The lower capacity SP920 drives however have fewer NAND channels than the M550. Comparing the 512GB M550 and SP920 shows that the drives have comparable performance but at the 256GB and 128GB capacities the M550 has a significantly faster sequential write speed. The 256GB SP920 does have an average effective speed and it is priced below average so overall it represents reasonably good value for money. That said, there are both faster and cheaper SSDs available in the now both heavily saturated and extremely competitive SSD market. [May '15 SSDrivePro]

MORE DETAILS

The Crucial MX100 is the first 16nm SSD to date. Aside from NAND, the MX100 shares the same hardware as its more expensive sibling, the M550. Comparing the MX100 and M550 shows that the two drives have similar read speeds but that the MX100 lags by nearly 50% at writing. The newer 16nm NAND reduces costs and accordingly the MX100 is the cheapest SSD (per GB) to date. In terms of performance the MX100 is a compromise which may or may not be worth making depending on individual circumstances. For typical desktop use including email, office documents and web browsing the MX100 is a great choice but power users should look elsewhere. Comparing the 250GB 840 EVO and 256GB MX100 shows that for a marginal premium, the Evo offers better write speeds. (Note: at 500GB they are more evenly matched) [Jun '14 SSDrivePro]

MORE DETAILS

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2,823
55,768
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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 $273Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair 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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