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PlextorPX-256M5M
CrucialCT120BX100SSD1
▲ 52552 ▼

Controller: Marvell 88SS9187-BLD2. Flash Memory: Toshiba 19nm Toggle Mode MLC. Release date: Q2 2013.

VS
▲ 52340 ▼

Controller: Silicon Motion SM2246EN. Flash Memory: Micron 16nm MLC. Release date: Q1 2015.

Effective Speed 
+4%
Real World Speed
Performance profile from 7,347 user samples
Benchmark your SSD here
416 User Benchmarks
Best Bench: 96% 474GB free
Worst Bench: 59% 116GB free (System drive)
Poor: 59% Great: 96%
SPEED RANK: 497th / 1072
6,931 User Benchmarks
Best Bench: 89% 0GB free (System drive)
Worst Bench: 56% 112GB free
Poor: 56% Great: 89%
SPEED RANK: 551st / 1072
Effective Speed
Effective SSD Speed 		79.1 % +4% 76.2 %
Average Score 
+22%
Read
Avg. Sequential Read Speed 		455 MB/s 475 MB/s +4%
Write
Avg. Sequential Write Speed 		363 MB/s Hugely faster write speed.
+101% 		181 MB/s
4K Read
Avg. 4K Random Read Speed 		23.8 MB/s 26.3 MB/s Faster random read.
+11%
4K Write
Avg. 4K Random Write Speed 		48.7 MB/s 76.4 MB/s Much faster random write.
+57%
Mixed
Avg. Sequential Mixed IO Speed 		336 MB/s Much faster mixed IO speed.
+49% 		226 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		25.3 MB/s 34.3 MB/s Much faster random mixed IO.
+36%
SusWrite
Avg. Sustained Write Speed 		338 MB/s Hugely faster sustained write speed.
+114% 		158 MB/s
Peak Score 
+34%
Read
Peak Sequential Read Speed 		499 MB/s 515 MB/s +3%
Write
Peak Sequential Write Speed 		410 MB/s Hugely faster peak write speed.
+118% 		188 MB/s
4K Read
Peak 4K Random Read Speed 		31.4 MB/s +1% 31 MB/s
4K Write
Peak 4K Random Write Speed 		74.3 MB/s 110 MB/s Much faster peak random write.
+48%
Mixed
Peak Sequential Mixed IO Speed 		445 MB/s Hugely faster peak mixed IO speed.
+81% 		246 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		37.7 MB/s 42.6 MB/s Faster peak random mixed IO.
+13%
SusWrite
Peak Sequential Sustained Write 60s Average 		376 MB/s Hugely faster peak sustained write speed.
+103% 		185 MB/s
Value & Sentiment 
�%
Market Share
Based on 75,791,469 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 0 %
Value
Value For Money 		5.4 % 7.42 % Much better value.
+37%
User Rating
UBM User Rating 		52 % 52 %
Price
Price (score) 		$240 $70 Much cheaper.
+71%
Nice To Haves 
+13%
Age
Newest 		133 Months 112 Months More recent.
+16%
DQ Read
Peak 4K-64Thread Read Speed 		306 MB/s Faster peak deep queue read.
+16% 		263 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		301 MB/s Much faster peak deep queue write.
+60% 		188 MB/s
AS-SSD Total
AS-SSD Total Score 		1,008 Pts Stronger server IO.
+21% 		834 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		220 MB/s Faster peak deep queue mixed IO.
+26% 		174 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		219 MB/s 245 MB/s Faster deep queue read.
+12%
ADQ Write
Avg. 4K-64Thread Write Speed 		222 MB/s Faster deep queue write.
+30% 		171 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		126 MB/s 154 MB/s Faster deep queue mixed IO.
+22%
Specifications 
Capacity
Capacity 		256GB 120GB
Conclusion 
Average Bench 79.1%
Average Bench 76.2%
ADVERTISEMENT

The Plextor M5M is the most recent mSATA SSD I have looked at. It has both the same controller and NAND flash (albeit with fewer channels) as its regular SATA sibling, the excellent M5 Pro. The performance figures for the M5M lag the top nine SATA group leaders by around 30% on average. The weakest area of core performance is shallow queue 4K write speed which clocks in at 57 MBps on the M5M vs a group average of 118 MBps. In terms of server orientated performance, the M5M takes 13th place out of 29 with an AS SSD total score of 946. That said it's only fair to look at the M5M within the context of other mSATA SSDs. It's not a clear cut performance win between the M5M and the Intel 525 Series but the M5M is retailing for 23% less. Unless shallow queue random writes are a top priority for your use case the M5M is the clear value winner, and my top mSATA pick for 2013. [Oct '13 SSDrivePro]

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Solid State Drive Rankings (Price vs Performance) May 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

Gaming Desktop ProGaming

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 $254Nvidia RTX 4060 $300Crucial MX500 250GB $39
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $163Nvidia 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) $31Corsair Vengeance LPX DDR4 3000 C15 2x8GB $37SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $64G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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