A better presentation experience with Intel Pro WiDi

A better presentation experience with Intel Pro WiDi
A BETTER PRESENTATION EXPERIENCE WITH INTEL PRO WIDI
Intel Pro Wireless Display (WiDi) is a new connection technology with the
potential to improve the business meeting process. Available on all Dell Latitude
systems that include Intel vPro processors, WiDi offers three management options to
minimize disruptions and enhance collaboration. It also has security and privacy
advantages over other ways of connecting and is easily configured to reduce IT
workload.
Here at Principled Technologies, we compared the experience of connecting a
Dell Latitude Ultrabook system featuring the new 5th Generation Intel Core processor to
an HD display two ways: first with HDMI cables and then using the wireless connections
available with Intel Pro WiDi. We found that not only was the Intel Pro WiDi approach
extremely convenient and easy to use, it also connected more quickly than the cable
option.
Consider Intel Pro WiDi technology to help your meetings keep moving and give
each of your big ideas the attention they deserve.
APRIL 2015 (Revised)
A PRINCIPLED TECHNOLOGIES TEST REPORT
Commissioned by Dell
INTEL WIRELESS TECHNOLOGY—THE CONVENIENCE OF A WIRELESS
CONNECTION WITH NONE OF THE DRAWBACKS
Connecting with cables
For years, using a cable to connect your laptop to an external display was
standard operating procedure for presenting material to a group. As long as the person
presenting remembered to bring her cable, made sure it was the correct type, and
avoided tripping over it, all was well. If her colleague had something to show the group,
she unplugged and everyone waited while he used her cable, or his own, to connect his
laptop to the display.
Figure 1: Before the advent of wireless technology, presenters would take turns connecting their
laptops to the display using HDMI cables.
Intel Pro WiDi security advantages
As wireless networks within companies became prevalent, eschewing the cable
became an option—the presenter needed only the proper credentials to join the
network. Not having to keep track of cables simplified the process, but giving a guest
presenter access to the corporate wireless network could introduce a security risk. Their
laptop could become a “soft access point” back door for malware through unsecure
peer-to-peer connections.
Designed to give users a better experience in conference rooms and in
meetings, Intel wireless technology delivers all the advantages of connecting to
projectors and displays through a wireless network, without the security risk incurred by
granting access to an infrastructure Wi-Fi network.
It accomplishes this by taking advantage of the Intel Pro WiDi ability to connect
to two separate radio channels, one for Wi-Fi networking, and a second one that
connects directly to an Intel Pro WiDi receiver attached to the display. In our testing, we
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A Principled Technologies test report 2
used the Actiontec ScreenBeam Pro Business Edition display receiver. This allows
employees to access both the WiDi receiver and the corporate network, while allowing
you to grant a guest who has a laptop with Intel WiDi Pro technology access to only the
WiDi receiver.
Intel Pro WiDi privacy advantages
Sometimes it’s important to keep certain data from reaching a display. This
could be sensitive business information that you don’t want guests from outside the
company to see or a personal message you’d like to keep private.
Because Intel Pro WiDi requires users to verify their connection to a display with
PIN prior to displaying content for the first time, it can help you avoid inadvertently
projecting to the incorrect display or conference room. The Intel WiDi Remote’s Extend
Mode gives the user an easy way to select which open application to display on the
projector in full-screen mode to protect sensitive or private information—it presents a
list of open applications, any of which the user can send to the presentation display with
a single click. This means that you won’t accidentally project your email or chat session.
Intel Pro WiDi presentation modes
Intel Pro WiDi offers three presentation modes that give presenters flexibility
and help with meeting management. Each mode is suited to a different meeting
structure:

Exclusive Mode gives a single presenter uninterruptible control of the
display.

Moderated Mode allows one person to control who will use the display
at any given point in a meeting.

Interactive Mode lets control pass amongst attendees.
Selecting the correct mode helps ensure that the meeting flows smoothly.
ABOUT OUR TESTING
In addition to its advantages in the areas of security, privacy, and flexibility,
using Intel Pro WiDi for your presentation needs can also save time. We put this to the
test in our labs. We used four Dell Latitude E7450 Ultrabook laptops, all powered by the
Intel Core i5-5300U processor, a 5th Generation Intel Core vPro processor featuring Intel
Pro WiDi technology. One of our laptops ran the Microsoft Windows 7 operating system
and the others ran Windows 8.1.
We created three test scenarios, each using a different Intel Pro WiDi
presentation mode. For all three scenarios, we first made presentations using WiDi
technology to connect wirelessly to the ScreenBeam Pro and noted how easily and
quickly we could work. Then we made the same presentations the old-fashioned way,
with HDMI cables, to see how the two compared. We carried out the scenarios multiple
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A Principled Technologies test report 3
times to represent users connecting to the display for multiple, sequential meetings. We
report median times in our results.
For detailed configuration information of the test systems, see Appendix A. For
detailed steps on how we tested, see Appendix B.
WHAT WE FOUND
Exclusive Mode
Brian has a series of meetings to present regional sales numbers to a group of
VPs. He uses his Ultrabook powered by a 5th Generation Intel Core vPro processor to
connect to the HD display. Because he is the only presenter, he uses Exclusive Mode
when connecting wirelessly (see Figure 2). Exclusive Mode locks Intel Pro WiDi into a
one-to-one connection with a single user, preventing other users from taking over the
session until the current presenter ends the session. Note: We tested this scenario with
both the Windows 7 Ultrabook and the Windows 8.1 Ultrabook.
Figure 2: Brian is the only person presenting at this meeting, so he uses Exclusive Mode.
The initial connection with Intel Pro WiDi requires driver configuration and
setup. Once this setup is complete, subsequent requests are quick and simple. All that is
required on Windows 8.1 is to swipe in the Charms bar, and select the desired WiDi
receiver from the Project charm. Windows 7-based users use the WiDi control
application to select a previously configured receiver. No further configuration is
required.
Figure 3 shows how long the Windows 7 Ultrabook and the Windows 8.1
Ultrabook took to connect after we had completed that initial setup. We report the time
needed for one presenter to connect one time. As it shows, on both systems, using Intel
Pro WiDi reduced the time to connect by more than one-fourth compared to using the
HDMI cable.
HDMI
cable
Windows 7 Ultrabook
Windows 8.1 Ultrabook
36.2
42.8
Intel Pro WiDi
wireless
26.5
31.5
Time
saved
9.7
11.3
Percentage
improvement
26.7%
26.4%
Figure 3: Time in seconds to for one presenter to connect to a display and present an application in Exclusive Mode one time
(after completing initial setup). Except for time saved and percentage improvement, lower numbers are better.
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A Principled Technologies test report 4
Moderated Mode
Frances leads her social media team in weekly meetings reviewing trends and
stats. She uses her Ultrabook powered by a 5th Generation Intel Core vPro processor to
connect to the HD display. Frances serves as the main presenter and host, allowing team
members to share documents on the HD display when appropriate (see Figure 4). In this
mode, Frances acts as a gatekeeper, using the Intel Pro Wireless controls to select from
a list of connected users who will present on the conference display with a single click.
Once she selects a new presenter, he clicks “Accept” and his content appears on screen.
Figure 4: Frances lets the other members of her team have turns presenting material at their meeting, so
she uses Moderated Mode.
As we mentioned earlier, the initial connection with Intel Pro WiDi requires
driver configuration and setup. Figure 5 shows how long the Windows 7 and Windows
8.1 Ultrabooks took to connect after we had completed that initial setup. We report the
total time needed for four presenters to connect one time each. On both systems, using
Intel Pro WiDi reduced the time to connect by more than one-tenth compared to using
the HDMI cable.
Windows 7 Ultrabook and Windows 8.1 Ultrabook
HDMI
cable
1:12.8
Intel Pro WiDi
wireless
1:04.4
Time
saved
08.4
Percentage
improvement
11.6%
Figure 5: Total time in minutes and seconds for four users to connect to a display and present an application in Moderated
Mode one time (after completing initial setup). Except for time saved and percentage improvement, lower numbers are better.
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A Principled Technologies test report 5
Interactive Mode
Jamal is part of a four-person leadership team that meets regularly to discuss
budgeting. He uses his Ultrabook powered by a 5th Generation Intel Core vPro
processor to connect to the HD display. The team meets in one of the company
conference rooms and each member contributes to the presentation equally.
Interactive Mode is conducive to rapid iteration and brainstorming. There is no
gatekeeper in this mode, which allows for dynamic changing from one presenter to the
next as an idea comes up. All users connect as usual to the session that the organizer
creates. The person who wishes to share content next selects “Request to Present” on
the Intel control application, and a small confirmation button appears in the corner of
the current presenter’s primary display. Once the current presenter clicks to accept the
request, control instantly transfers to the new presenter. Figure 6 illustrates Interactive
Mode.
Figure 6: Jamal and his colleagues take turns presenting their budgets to each other at their meeting,
so they use Interactive Mode.
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A Principled Technologies test report 6
Jamal begins by presenting his data. As he does so, his colleague Natalie
recognizes an issue that she recently resolved, and selects “Request to Present.” Once
Jamal finishes his thought, he accepts Natalie’s request, giving her access to the screen.
After she has shared her data, she asks who’d like to present next. Kevin says that he’s
ready, and selects “Request to Present.” Natalie accepts and Kevin controls the screen.
After a few minutes, Jamal has a piece of data he think would help Kevin, so he makes a
request to present and Kevin accepts it. They proceed in this fashion for the remainder
of their meeting.
As with the other modes, the initial connection with Intel Pro WiDi requires
driver configuration and setup. Figure 7 shows how long the Windows 7 and Windows
8.1 Ultrabooks took to connect after we had completed that initial setup. We report the
total time needed for four presenters to connect two times each. On both systems,
using Intel Pro WiDi reduced the time to connect by more than one-third—saving 1
minute and 18 seconds--compared to using the HDMI cable. This could speed up their
meeting noticeably, letting them spend less time switching cables, moving around the
conference room, or waiting and more time collaborating.
Windows 7 Ultrabook and Windows 8.1 Ultrabook
HDMI
Intel Pro WiDi
cable
wireless
3:20.6
02:01.6
Time
saved
1:19.0
Percentage
improvement
39.4%
Figure 7: Total time in minutes and seconds for four users to connect to a display and present an application in Interactive
Mode two times (after completing initial setup. Except for time saved and percentage improvement, lower numbers are
better.
CONCLUSION
New technology can foster collaborative environments and save time in your
meetings and presentations. We found that Dell Latitude E7450 Ultrabook systems
powered by 5th Generation Intel Core vPro processors with Intel Pro WiDi technology
saved time when connecting and displaying applications in Exclusive, Moderated, and
Interactive scenarios compared to connecting the devices using HDMI cables. It also
offered privacy and security advantages over other ways of connecting to display
devices. Keep the meeting moving and give your big ideas the attention they deserve
with Intel Pro WiDi.
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APPENDIX A – SYSTEM CONFIGURATION INFORMATION
Figure 8 provides detailed configuration information for the test systems.
System
General
Number of processor packages
Number of cores per processor
Number of hardware threads per
core
Total number of processor threads
in system
System power management policy
Processor power-saving option
System dimensions (length x width x
height)
System weight (lbs.)
CPU
Vendor
Name
Model number
Stepping
Socket type and number of pins
Core frequency (GHz)
L1 cache
L2 cache
L3 cache
Platform
Vendor
Motherboard model number
Motherboard chipset
BIOS name and version
Memory module(s)
Vendor and model number
Type
Speed (MHz)
Speed running in the system (MHz)
Timing/Latency (tCL-tRCD-tRPtRASmin)
Size (MB)
Number of memory module(s)
Total amount of system RAM (GB)
Channel (single/dual)
Dell Latitude E7450: Windows 7
Dell Latitude E7450: Windows 8.1
1
2
2
1
2
2
4
4
Dell
Enhanced Intel SpeedStep
Technology
13.3” x 9.12” x 0.8”
Dell
Enhanced Intel SpeedStep Technology
3.43
3.43
Intel
Core i5
5300U
F0
Socket 1168 BGA
2.3
2 x 32 KB + 2 x 32 KB
2 x 256 KB
3 MB
Intel
Core i7
5600U
F0
Socket 1168 BGA
2.6
2 x 32 KB + 2 x 32 KB
2 x 256 KB
3 MB
Dell
0D8H72
Broadwell-U
Dell A00 (10/24/2014)
Dell
0YGN55
Broadwell-U
Dell A00 (10/24/2014)
Hyundai HMT451S6AFR8A-PB
PC3-12800
800
800
11-11-11-28
Samsung M471B1G73QH0-YK0
PC3-12800
800
800
11-11-11-28
4,096
1
4
Single
8,192
1
8
Single
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13.3” x 9.12” x 0.8”
A Principled Technologies test report 8
System
Hard disk
Vendor and model number
Number of disks in system
Size (GB)
Buffer size (MB)
RPM
Type
Controller
Driver
Operating system
Name
Build number
File system
Kernel
Language
Microsoft DirectX version
Graphics
Vendor and model number
Type
Chipset
BIOS version
Total available graphics memory
(MB)
Dedicated video memory (MB)
System video memory (MB)
Shared system memory (MB)
Resolution
Driver
Dell Latitude E7450: Windows 7
Dell Latitude E7450: Windows 8.1
Samsung PM851
1
128
NA
NA
SATA 6.0 Gb/s
Intel Mobile Express Chipset SATA
RAID Controller
Intel 13.2.0.1016 (06/20/2014)
Samsung PM851
Windows 7
7601
NTFS
ACPI x64-based PC
English
DirectX 11
Windows 8.1
9600
NTFS
ACPI x64-based PC
English
DirectX 11
Intel HD Graphics 5500
Integrated
Intel HD Graphics Family
1032v15
1,661
Intel HD Graphics 5500
Integrated
Intel HD Graphics Family
1032v15
3,839
64
0
1,597
1366 x 768
Intel 10.18.14.4099 (01/19/2015)
64
0
3,839
1920 x 1080
Intel 10.18.14.4099 (01/19/2015)
1
256
NA
NA
SATA 6.0 Gb/s
Intel Mobile Express Chipset SATA
RAID Controller
Intel 13.2.0.1016 (06/20/2014)
Figure 8: Configuration information for the test systems.
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APPENDIX B – HOW WE TESTED
Exclusive Mode
Connecting and displaying an application with Intel Pro WiDi on a Windows 8.1 laptop
1. Simultaneously start a timer and swipe in the Charms bar, and then choose DevicesProjectAdd a Wireless
Display.
2. Select the Actiontec receiver from the list.
3. When prompted, enter the PIN from the conference display.
4. Wait for the wizard to complete the driver installation.
5. On the Intel® Pro WiDi Screen confirmation page, select Only I present, and then click Yes – start sharing.
6. In the Intel Pro WiDi control application, click Open Intel WiDi Remote.
7. In the Intel WiDi Remote, select Extend.
8. To verify Different Channel Mode connectivity, open an application from the network via Wi-Fi.
9. Select the document in the Intel WiDi remote so that it appears on the conference display, and then stop the
timer.
Connecting and displaying an application with Intel Pro WiDi on a Windows 7 laptop
1. Simultaneously start a timer and open the Intel WiDi control application.
2. Select the Actiontec receiver from the list.
3. When prompted, enter the PIN from the conference display.
4. Wait for the wizard to complete the driver installation.
5. On the Intel® Pro WiDi Screen confirmation page, select Only I present, and then click Yes – start sharing.
6. In the Intel Pro WiDi control application, click Open Intel WiDi Remote.
7. In the Intel WiDi Remote, select Extend.
8. To verify Different Channel Mode connectivity, open an application from the network via Wi-Fi.
9. Select the document in the Intel WiDi remote so that it appears on the conference display, and then stop the
timer.
Connecting and displaying an application with an HDMI physical connection from a Windows 8.1 laptop
1. Simultaneously start a timer and connect the laptop to the conference display via HDMI. By default, conference
display may connect as an extended display.
2. If the display starts in mirrored mode, open the Display Properties panel, and configure the conference display
as extended.
3. Open an application from the network via Wi-Fi.
4. Drag the document to the conference display, and then stop the timer.
Connecting and displaying an application with an HDMI physical connection from a Windows 7 laptop
1. Simultaneously start a timer and connect the laptop to the conference display via HDMI.
2. Open the Display Properties control panel, and configure the conference display as extended.
3. Open an application from the network via Wi-Fi.
4. Drag the document to the conference display, and then stop the timer.
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Moderated Mode
Connecting and displaying documents with Intel Pro WiDi on Windows 7 and Windows 8.1 laptops
1. Simultaneously start the timer and on the Host laptop, select I can request others to present.
2. On three other laptops, join using the steps listed in Exclusive mode. A PIN will be displayed for each person who
joins on the conference display.
3. On the host laptop, select a guest laptop, and request the guest to present.
4. On the guest laptop, extend the desktop, and present an application as listed above.
5. Repeat steps 3 and 4 for the other two guest laptops.
6. Stop the timer.
7. Record the total elapsed time to present all three guests.
Connecting and displaying documents with an HDMI physical connection from Windows 8.1 laptops
1. Simultaneously start a timer and disconnect the host laptop.
2. Connect the first Windows 8.1 guest laptop to the conference display via HDMI. By default, conference display
should connect as an extended display.
3. Open an application from the network via Wi-Fi.
4. Drag the document to the conference display.
5. Disconnect the laptop, and repeat steps 2 through 5 for the remaining Windows 8.1 laptop.
Connecting and displaying documents with an HDMI physical connection from Windows 7 laptops
1. Disconnect the Windows 8.1 laptop.
2. Connect the guest Windows 7 laptop to the conference display via HDMI.
3. Open the Display Properties control panel, and configure the conference display as extended.
4. Open an application from the network via Wi-Fi.
5. Drag the document to the conference display.
6. Stop the timer.
7. Record the total time of the physical connection section.
Interactive Mode
Connecting and displaying documents with Intel Pro WiDi on Windows 7 and Windows 8.1 laptops
1. Simultaneously start a timer and on the Host laptop, select Others can request to present.
2. On three other laptops, join using the steps listed in Exclusive mode.
3. On the host laptop, extend the desktop and present an application as listed above.
4. On the first guest laptop, request to present.
5. Extend the desktop, and present an application as listed above.
6. Repeat steps 3 through 5 for the other two guest laptops.
7. For two presentations per laptop, complete an additional cycle of testing (steps 1 through 6).
8. Stop the timer.
9. Record the total elapsed time to present all four laptops twice.
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Connecting and displaying documents with an HDMI physical connection from Windows 8.1 laptops
1. Simultaneously start the timer and connect the host laptop to the conference display via HDMI. By default,
conference display should connect as an extended display.
2. Open an application from the network via Wi-Fi.
3. Drag the document to the conference display.
4. Disconnect the host laptop.
5. Connect the first Windows 8.1 guest laptop to the conference display via HDMI.
6. Repeat steps 2 to 4 for the guest laptop.
7. Disconnect the laptop, and repeat steps 2 through 5 for the remaining Windows 8.1 laptop.
Connecting and displaying documents with an HDMI physical connection from Windows 7 laptops
1. Disconnect the Windows 8.1 laptop.
2. Connect the guest Windows 7 laptop to the conference display via HDMI.
3. Open the Display Properties control panel, and configure the conference display as extended, if necessary.
4. Open an application from the network via Wi-Fi.
5. Drag the document to the conference display.
6. Starting with the host laptop, repeat the cycle of testing (steps 1 through 5).
7. Stop the timer after completing two full cycles (each laptop presents twice).
8. Record the total time for two full cycles of rotation.
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ABOUT PRINCIPLED TECHNOLOGIES
Principled Technologies, Inc.
1007 Slater Road, Suite 300
Durham, NC, 27703
www.principledtechnologies.com
We provide industry-leading technology assessment and fact-based
marketing services. We bring to every assignment extensive experience
with and expertise in all aspects of technology testing and analysis, from
researching new technologies, to developing new methodologies, to
testing with existing and new tools.
When the assessment is complete, we know how to present the results to
a broad range of target audiences. We provide our clients with the
materials they need, from market-focused data to use in their own
collateral to custom sales aids, such as test reports, performance
assessments, and white papers. Every document reflects the results of
our trusted independent analysis.
We provide customized services that focus on our clients’ individual
requirements. Whether the technology involves hardware, software, Web
sites, or services, we offer the experience, expertise, and tools to help our
clients assess how it will fare against its competition, its performance, its
market readiness, and its quality and reliability.
Our founders, Mark L. Van Name and Bill Catchings, have worked
together in technology assessment for over 20 years. As journalists, they
published over a thousand articles on a wide array of technology subjects.
They created and led the Ziff-Davis Benchmark Operation, which
developed such industry-standard benchmarks as Ziff Davis Media’s
Winstone and WebBench. They founded and led eTesting Labs, and after
the acquisition of that company by Lionbridge Technologies were the
head and CTO of VeriTest.
Principled Technologies is a registered trademark of Principled Technologies, Inc.
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TESTING. CUSTOMER’S SOLE AND EXCLUSIVE REMEDIES ARE AS SET FORTH HEREIN.
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A Principled Technologies test report 13
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