1. The document compares the performance of solid state drives (SSDs) and hard disk drives (HDDs) through a series of experiments measuring boot up speed, read/write speeds, and operating temperatures. 2. The results show SSDs booted up on average 17.2 seconds compared to 42.2 seconds for HDDs. SSDs also had significantly faster read/write speeds of 443/366 MB/s compared to 95/94 MB/s for HDDs. Operating temperatures were similar between the two. 3. While HDDs have greater maximum storage capacity compared to SSDs, SSDs have faster performance for boot up times and application loading, making them generally better suited for applications requiring speed

1. Solid State Drive versus
Hard Disk Drive
HW0210 Technical communication
TUTOR GROUP: SCE4 | TUTOR: CHRISTINE LEE
B I L LY | J U N X U A N | B E N J A MI N | H A N MI N G | J I A N
FANG

2. Outline
O Introduction
O Literature Review
O Method & Materials
O Results
O Conclusion

3. 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)

4. Background
O HDD:
O IBM 1956
O Magnetic coating on metal platters
O Data are read/written by movements of
magnetic heads.

5. Background
O SSD:
O 1950s
O Controller and NAND flash memory chips
O Data are read/written by read/write
functions

6. 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.

7. Literature Review
O Highlight differences between drives
O Primary advantages of both drives
O Research gap in past researches

8. Differences
O 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.

9. Differences
O 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

10. Primary Advantages
O Primary advantages of SSD:
O Faster performance
O Booting up of PC
O Launching of applications
O Primary advantages of HDD:
O Higher maximum storage capacity
O Up to 4 Terabytes

11. Primary Advantages
O 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

12. 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

13. Method
O The aim of the experiments were to obtain
data to evaluate the performance of each
of the drives.
O Three experiments:
O Boot-up speed
O Read & Write speed
O Operating temperature

14. Materials
O 13-inch Apple MacBook Pro x2
O 256GB SSD
O 500GB HDD
O Stopwatch

15. Materials (Cont’d)
O Blackmagic Disk Speed
Test
O 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.

16. 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.

17. Procedures
1. Boot-up speed
Power up both
MacBook and
start the
stopwatch
Note the time
taken for each of
them to complete
the process
Repeat process for another 4 times
Finally, obtain the average from the results gathered.

18. Procedures (Cont’d)
2. Read & Write speed
Start
Blackmagi
c Speed
Test
Repeat process
for another 3
times
Note down
the results
Finally, obtain the
average from the results
gathered.
Allow it to
run for 5
minutes

19. 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.

20. Results
Second(s)
Boot-up time
50
45
40
35
30
25
20
15
10
5
0
SSD
HDD
EXP 1
EXP 2
EXP 3
EXP 4

21. Results (Cont’d)
Reading speed
600
MB/s
500
400
SSD
300
HDD
200
100
0
EXP 1
EXP 2
EXP 3
EXP 4

22. Results (Cont’d)
MB/s
Writing speed
450
400
350
300
250
200
150
100
50
0
SSD
HDD
EXP 1
EXP 2
EXP 3
EXP 4

23. Results (Cont’d)
Temperature( °C )
Operating temperature
40
35
30
25
20
15
10
5
0
SSD
HDD
EXP 1
EXP 2
EXP 3
EXP 4

24. Final results
Result
SSD
HDD
Boot-up
17.2sec
42.2sec
Read
443MB/sec
95MB/sec
Write
366MB/sec
94MB/sec
Temperature
33°C
34°C

25. Why SSD is better than HDD?
Reason: The difference in technology.
HD
D
SS
D

26. Conclusion……..
1. Limitation
2. Recommendation
3. Application

27. Final results
Result
SSD
HDD
Boot-up
17.2sec
42.2sec
Read
443MB/sec
95MB/sec
Write
366MB/sec
94MB/sec
Temperature
33°C
34°C

28. Limitations…
1. System…

29. 2. Heat dissipation…
HDD/SSD

30. Recommendation…
1. Uses a range of disk..
• Brand
• Capacity
2. New SSD,HDD & System

31. Application…

32. Thank you for your kind attention
&
All the best for your final exams!


33. References
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
http://laptopbuyer.info/wp-content/uploads/2011/07/apple-macbook-pro-3.jpg
http://images.wikia.com/theamazingworldofgumball/images/8/81/Power_button.png
http://educononline.com/wp-content/uploads/2008/09/note-taking.gif
http://www.geniusdv.com/news_and_tutorials/2011/08/15/disk_speed_test.png
http://geeksretreat.files.wordpress.com/2012/07/egg-timer-html5-canvas-headache.png
http://i1-news.softpedia-static.com/images/news2/iStat-Menus-3-Released-for-Mac-OS-XDownload-Here-2.jpg
http://ia.mediaimdb.com/images/M/MV5BMTQ4MjQzMjQxN15BMl5BanBnXkFtZTcwNzAzODY1OQ@@._
V1._SX640_SY494_.jpg
http://images.firstcovers.com/covers/flash/f/final_exams-331143.jpg?i
http://www.macobserver.com/imgs/category_images/20120910_mbpbatterylife4a.jpg
http://static.myce.com/images_posts/2009/10/Table-SSD-Cost-Per-GB.png
http://blog.laptopmag.com/wpress/wp-content/uploads/2012/03/geeks-geek-app-open.jpg
http://hdr.in.ua/wp-content/uploads/2013/06/hdd_11.jpg
http://lignup.com/computer-tips/81-meaning-of-ssd.html
http://searchsolidstatestorage.techtarget.com/video/Storage-Decisions-TechTalk-DennisMartin-on-SSD-trends
http://www.computerweekly.com/feature/Hard-drive-capacity-emphasized-overperformancefor-future-enterprise-hard-drives

34. Q&A
O What is secondary storage device?
O Why our results are different from result
O
O
O
O
O
on Internet?
Should I use SSD or HDD?
Future trend of SSD and HDD?
Why we use Mac OS?
Maximum capacity of SSD and HDD ?
Maximum speed of SSD and HDD

35. Q&A
O What is secondary storage device?
O external memory and auxiliary storage
O Hold information even the power is off
O Why our results are different from result
on Internet?
O The use period of laptop, HDD and SSD
O The different version
O Environment factor: number of
application, …

36. Q&A
O Should I use SSD or HDD?
O If:
O storage capacity, up to 4TB
O Don’t want to spend much money
O 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 performance
O Don’t mind limited storage capacity or can work
around that.

37. Q&A
O Future trend of SSD and HDD?
O SSD:
O Increase its capacity
O Decrease its price
O HDD:
O Increase it performance or improve its desity

38. Q&A
O 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

39. Q&A
O Maximum capacity of SSD and HDD ?
O SSD: 2 TB
O HDD: 4TB
O Maximum speed of SSD and HDD
O SSD: SATA 6 GB/s
O HDD: 10’000 rpm (200 MB/s)