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Difference between SSD and HDD. User, based on their own interest, which one should they choose, manufacture need to adapt to
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Solid State Drive versus
Hard Disk Drive
HW0210 Technical communication
T U T O R G R O U P : S C E 4 | T U T O R : C H R I S T I N E L E E
B I L L Y | J U N X U A N | B E N J A M I N | H A N M I N G | J I A N F A N G
OutlineO IntroductionO Literature ReviewO Method & MaterialsO ResultsO Conclusion
Background
O Data storage devices
O Popular in our lives
O Known as secondary storage devices
O 2 types of data storage devices
O Hard Disk Drive (HDD)
O Solid State Drive (SSD)
Background
O HDD:O IBM 1956O Magnetic coating on metal plattersO Data are read/written by movements
of magnetic heads.
Background
O SSD:O 1950sO Controller and NAND flash memory
chipsO Data are read/written by read/write
functions
Objective and Audience
O Objective
O Provide the statistical figures
O Compare differences between HDD and
SSD
O Manufacturers
O identify which drives will be more suitable
O educate their end users.
Literature ReviewO Highlight differences between drives
O Primary advantages of both drives
O Research gap in past researches
DifferencesO Power consumption:
O SSD uses 5% of system power O HDD uses 10% of system power O Power usage of SSD is half of a HDD
in both state.
DifferencesO Price of SSD is significantly higher:
O Highly complex process.O Sophisticated flash memory
O Heat dissipation of SSD is lower:O Uses lesser power than HDD
Primary AdvantagesO Primary advantages of SSD:
O Faster performanceO Booting up of PCO Launching of applications
O Primary advantages of HDD:O Higher maximum storage capacity
O Up to 4 Terabytes
Primary AdvantagesO Reasons why HDD lost in
performance:O More time spent waiting for platters
to access data
O Reasons why SSD lost in storage capacity:O Limitations in size of transistors and
parts in SSD
Research Gap
O Little has shown:
O Temperature fluctuation at different
intervals
O Statistical figures of boot up and
read/write speed with a fair
environment
MethodO The aim of the experiments were to
obtain data to evaluate the performance of each of the drives.
O Three experiments:O Boot-up speedO Read & Write speedO Operating temperature
Materials
O 13-inch Apple MacBook Pro x2
O 256GB SSD
O 500GB HDD
O Stopwatch
Materials (Cont’d)O Blackmagic Disk
Speed TestO A software used to
assess storage drives’ read and write performance.
O It obtains the drives’ performance by comparing the time taken to write and read large data to and from the drive.
Materials (Cont’d)O iStat Menus
O A software that allow users to monitor detailed information of the computer in real time.
O It makes use of the sensors built inside of the computer to obtain the hardware information.
Power up both MacBook and
start the stopwatch
Note the time taken for each
of them to complete the
process
Procedures
1. Boot-up speed
Repeat process for another 4 times
Finally, obtain the average from the results gathered.
Procedures (Cont’d)
2. Read & Write speedStart
Blackmagic
Speed Test
Allow it to run for
5 minutes
Note down the
results
Repeat process for another 3
times
Finally, obtain the average from the results gathered.
Procedures (Cont’d)
3. Operating temperature
Run iStat Menus
Note down the operating temperature of the drive
Repeat process for another 3 times every 15 minutes
Finally, obtain the average from all the results.
Results
EXP 1 EXP 2 EXP 3 EXP 40
10
20
30
40
50
SSD
HDD
Boot-up time
Secon
d(s
)
Results (Cont’d)
EXP 1 EXP 2 EXP 3 EXP 40
100
200
300
400
500
600
SSD
HDD
Reading speed
MB
/s
Results (Cont’d)
EXP 1 EXP 2 EXP 3 EXP 40
50100150200250300350400450
SSDHDD
Writing speed
MB
/s
Results (Cont’d)
EXP 1 EXP 2 EXP 3 EXP 405
10152025303540
SSDHDD
Operating temperature
Tem
pera
ture
( °C
)
Final resultsResult SSD HDD
Boot-up 17.2sec 42.2sec
Read 443MB/sec 95MB/sec
Write 366MB/sec 94MB/sec
Temperature 33°C 34°C
Why SSD is better than HDD?
Reason: The difference in technology.
HDD
SSD
Conclusion……..
1. Limitation2. Recommendation3. Application
Final resultsResult SSD HDD
Boot-up 17.2sec 42.2sec
Read 443MB/sec 95MB/sec
Write 366MB/sec 94MB/sec
Temperature 33°C 34°C
Limitations…
1. System…
2. Heat dissipation…
HDD/SSD
Recommendation…
1. Uses a range of disk..• Brand• Capacity
2. New SSD,HDD & System
Application…
Thank you for your kind attention&
All the best for your final exams!
ReferencesO http://laptopbuyer.info/wp-content/uploads/2011/07/apple-macbook-pro-3.jpgO http://images.wikia.com/theamazingworldofgumball/images/8/81/Power_button.pngO http://educononline.com/wp-content/uploads/2008/09/note-taking.gifO http://www.geniusdv.com/news_and_tutorials/2011/08/15/disk_speed_test.pngO http://geeksretreat.files.wordpress.com/2012/07/egg-timer-html5-canvas-headache.pngO http://i1-news.softpedia-static.com/images/news2/iStat-Menus-3-Released-for-Mac-OS-X-
Download-Here-2.jpgO http://ia.media-imdb.com/images/M/
MV5BMTQ4MjQzMjQxN15BMl5BanBnXkFtZTcwNzAzODY1OQ@@._V1._SX640_SY494_.jpgO http://images.firstcovers.com/covers/flash/f/final_exams-331143.jpg?iO http://www.macobserver.com/imgs/category_images/20120910_mbpbatterylife4a.jpgO http://static.myce.com/images_posts/2009/10/Table-SSD-Cost-Per-GB.pngO http://blog.laptopmag.com/wpress/wp-content/uploads/2012/03/geeks-geek-app-open.jpgO http://hdr.in.ua/wp-content/uploads/2013/06/hdd_11.jpgO http://lignup.com/computer-tips/81-meaning-of-ssd.htmlO http://searchsolidstatestorage.techtarget.com/video/Storage-Decisions-TechTalk
-Dennis-Martin-on-SSD-trendsO http://www.computerweekly.com
/feature/Hard-drive-capacity-emphasized-over-performancefor-future-enterprise-hard-drives
Q&AO What is secondary storage device?O Why our results are different from
result on Internet?O Should I use SSD or HDD?O Future trend of SSD and HDD?O Why we use Mac OS?O Maximum capacity of SSD and HDD ?O Maximum speed of SSD and HDD
Q&AO What is secondary storage device?
O external memory and auxiliary storage
O Hold information even the power is offO Why our results are different from
result on Internet?O The use period of laptop, HDD and
SSDO The different version O Environment factor: number of
application, …
Q&AO Should I use SSD or HDD?O If:
O storage capacity, up to 4TBO Don’t want to spend much moneyO Don’t care too much about how fast a
computer boots up or opens programs O If:
O You are willing to pay for faster performanceO Don’t mind limited storage capacity or can
work around that.
Q&AO Future trend of SSD and HDD?
O SSD: O Increase its capacityO Decrease its price
O HDD: O Increase it performance or improve its
desity
Q&AO Why we use Mac OS?
O As we only find 2 identical laptop using Mac OS
O If we can find 2 identical laptop using Window, then we also can use Window
O The results also depend on the operating system
Q&AO Maximum capacity of SSD and HDD ?
O SSD: 2 TBO HDD: 4TB
O Maximum speed of SSD and HDDO SSD: SATA 6 GB/sO HDD: 10’000 rpm (200 MB/s)
