1301760 PCI Express SB.qxd
Sales Brief
Improve Video Quality with the
PCI Express* x16 Graphics Interface
The Visual Digital Universe
is Growing
Digital video content is becoming increasingly
important in today’s electronic universe. Content,
applications and usage models are more and more
demanding as new capabilities are added. As
a result, no single aspect of the personal computing
platform requires as much performance increase
as the graphics interface.
PC users are exploring exciting new video capabilities
today, and integrating these into their everyday lives.
They are capturing personal events with digital video
cameras, digitally recording favorite television programming with PVRs, playing the latest games, and
watching high-definition digital video.
The revolutionary new PCI Express* x16 graphics interface, offered by the Intel® 915 and
925X Express chipsets, provides an ideal solution for these demanding usage models. The PCI
Express x16 graphics interface delivers increased bandwidth and scalability, with up to four times
the theoretical maximum bandwidth over previous generation AGP8X-based solutions. With up to
4 GB/s of peak bandwidth per direction, and up to 8 GB/s concurrent bandwidth, a platform configured with a PCI Express x16 graphics card can tackle the most demanding multimedia tasks.
AGP 8X Graphics Card
Image
Arbitration
GMCH
Video
PCI Express* Graphics Card
Image
Intel® 915G Express Chipset
Video
Figure 1: The Intel® 915G Express chipset with the PCI Express* x16 graphics interface
AGP
4X
AGP
8X
PCI
Express*
x16
50
4000
40
3000
30
2000
20
1000
10
0
0
1985
1993
1997
1998
1999
2002
Performance of rendering four 720p image streams with no
CPU decode
69%
16%
PCI Express* x16
Intel® 915P Express
Chipset
AGP
2X
AGP 8X
Intel ® 865P
Chipset
AGP
1X
AGP 4X
Intel ® 865P
Chipset
PCI
FPS
MB/s
ISA
2004
Rendering four 720p image streams as fast as possible
No CPU decode
Result copied to system memory
Figure 2: The PCI Express* x16 graphics interface delivers
greater performance
A Better Gaming Experience
Photo-realistic images are expanding traditional multi-player
online role-playing into a new era of immersive gaming. Life-like
images bring the user into a new level of interactivity, further
enhancing the overall gaming experience. The increased
bandwidth and bidirectional data transfer capability in the PCI
Express x16 graphics interface allow rapid video capture and
editing, as well as stunning streaming video content to meet
the increased requirements of your digital lifestyle. By enabling
simultaneous use of both directions in the PCI Express x16
graphics link, video capture and editing can be accomplished
seamlessly, resulting in ‘glitchless’ video streaming.
Enabling the Digital Home
As an industry initiative, the digital home movement is addressing the convergence of PCs and consumer electronic devices.
The initiative is extending PC capabilities to distribute digital
audio, photos, and video to consumers’ suitably enabled TVs
and stereos. These exciting new products and technologies
make further use of the graphics interface between the chipset
and graphics controller.
Figure 3: The PCI Express* x16 graphics interface enables
faster rendering
Benchmark configuration data
Source: Intel. Configuration: Intel® 865P Chipset Platform—Intel® 865GBF Desktop Board,
2-GB DDR400 CL3-3-3, Intel® Chipset Software Installation Utility 5.01.1015, ATI* RADEON*
9600 Pro, ATI* CATALYST* 4.1; Intel® 915P Express Chipset Platform—Intel® 915P
Express Chipset CRB, 2-GB DDR/400 CL3-3-3, Intel® Chipset Software Installation Utility
6.0.0.1003; All Platforms—Intel® Pentium® 4 Processor with HT Technology 3E GHz,
Seagate* Barracuda* 7200 Serial ATA 120 GB, DirectX* 9.0b, Windows* XP Build 2600 SP1.
Performance tests and ratings are measured using specific computer systems and/or
components and reflect the approximate performance of Intel® products as measured by
those tests. Any difference in system hardware or software design or configuration may
affect actual performance.
Better Graphics, Improved Performance
As uses for the common PC expand, PCI Express x16 graphics
provide increased performance and scalability that meet
increased demand for richer application content and improved
graphical display. PCI Express x16 graphics is helping to
support this exciting new, visually intense, computing environment by delivering the hardware and processing support
required for the latest visual capabilities.
If you’re looking for high-performance video and graphics, the
revolutionary new Intel 915 and 925X Express chipset family
and high-performance PCI Express x16 graphics interface are
the right choice for the discriminating digital home owner and
business power user.
INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL
OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL’S TERMS AND
CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED
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PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
The Intel® Express chipsets may contain design defects or errors known as errata which may cause the product to deviate from published specifications.
Current characterized errata for commercially available products are available on request. Intel Corporation assumes no responsibility for the use of
any circuitry other than circuitry embodied in an Intel® product. Information contained herein supersedes previously published specifications on these
devices from Intel.
Intel products are not intended for use in medical, life-saving, life-sustaining applications. Intel may make changes to specifications and product
descriptions at any time, without notice.
Copyright © 2004 Intel Corporation. All rights reserved. Intel and the Intel logo are trademarks or registered trademarks of Intel Corporation or its subsidiaries in
the United States and other countries.
*Other names and brands may be claimed as the property of others.
Printed in USA 0404/PDF/MS/DN
Order Number: 301501-001
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