VIA PT880
Intuitive Technologies Powering the
Intel® Pentium® 4 Platform
Technology Brief
VIA Technologies, Inc.
November 2003VIA PT880
Intuitive Technologies Powering the Pentium 4 Platform
VIA PT880 Chipset: Intuitive Technologies Powering the Intel®
Pentium® 4 Platform
The PT880 represents a revolutionary new North Bridge architecture design from VIA
and includes a host of new intuitive memory technologies, providing exceptional
system performance and a rich digital media experience. Featuring the revolutionary
DualStream64™ memory controller, a new approach to dual channel memory
technologies with support for up to 8GB of DDR400 SDRAM, the VIA PT880 integrates
support for 800MHz FSB, Hyper-Threading, AGP 8X and utilizes an asynchronous bus
design to maximize system optimizations and flexibility. Ultra V-Link provides a high
throughput 1066MB/s interconnect between the North and South Bridge.
In combination with the acclaimed VIA VT8237 South Bridge, the VIA PT880 offers the
most complete range of storage, multimedia and connectivity features for the Intel
Pentium 4 processor. In addition to enabling native support for two Serial ATA Hard
Drives and up to four IDE devices, it provides optimal data transfer rates and data
integrity through V-RAID, a revolutionary integrated RAID controller with support for
multiple RAID configurations. The VT8237 also features the VIA Vinyl Multichannel
Audio Suite for superlative 6-channel and 8-channel immersion audio support, while
VIA’s Advanced Connectivity Suite offers a host of high-bandwidth connectivity options,
including support for the VIA Velocity Gigabit Ethernet companion controller,
integrated 10/100Mbps Fast Ethernet and up to eight high-speed USB 2.0 ports.
The VIA PT880 is part of VIA’s unique Modular Architecture Platform (V-MAP) that
reduces design times and shortens time-to-market for motherboard partners through
pin-compatibility across VIA core logic solutions, and allows motherboard partners to
cover multiple market segments with a single design.
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Copyright © VIA Technologies, Inc, 2003.
Third party brands and names are the property of their respective owner.VIA PT880
Intuitive Technologies Powering the Pentium 4 Platform
Index
VIA PT880 North Bridge................................................................................. 4
DualStream64 Memory Controller ............................................................... 5
Asynchronous Bus Architecture................................................................... 6
Ultra V-Link Interconnect............................................................................ 6
VIA VT8237 South Bridge............................................................................... 7
VIA Vinyl Multichannel Audio Suite ............................................................. 7
Enabling VIA Vinyl Audio .........................................................................8
VIA Vinyl Gold Audio...............................................................................9
VIA DriveStation Controller Suite.............................................................. 10
VIA DriveStation Serial ATA Controller......................................................10
VIA DriveStation V-RAID Controller..........................................................11
VIA Advanced Connectivity Suite............................................................... 14
VIA Velocity™ Gigabit Ethernet Controllers ............................................ 14
USB 2.0................................................................................................... 15
PCI Interface & LPC Bus......................................................................... 15
Advanced Connectivity Options .............................................................. 15
VIA VPX2 for Servers and Workstations................................................. 15
Index of Diagrams
Figure 1: VIA PT880 Block Diagram .............................................................. 4
Figure 2: Memory Bandwidth Performance: SiSoft Sandra Benchmark.......... 5
Figure 3: VIA VT8237 South Bridge Architecture........................................... 7
Figure 4: VIA Stylus Audio Driver Interface .................................................. 8
Figure 5: VIA Vinyl Gold Audio 8-Channel Configuration............................... 9
Figure 6: Serial ATA Performance: HD Tach Burst Speed Benchmark.......... 10
Figure 7: The SATALite Interface................................................................. 11
Figure 8: V-RAID Performance: HD Tach Burst Speed Benchmark............... 12
Figure 9: Screenshots Using the V-RAID Software Interface....................... 13
Figure 10: Gigabit Ethernet Throughput Output.......................................... 14
Index of Tables
Table 1: RAID Configurations Supported by V-RAID.................................... 12
Table 2: VIA PT880 Chipset Feature Comparison Table............................... 16
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Copyright © VIA Technologies, Inc, 2003.
Third party brands and names are the property of their respective owner.VIA PT880
Intuitive Technologies Powering the Pentium 4 Platform
VIA PT880 North Bridge
Optimized for the Intel® Pentium® 4 processor, the VIA PT880 chipset features support
for 800MHz FSB, Hyper-Threading, AGP8X and introduces the revolutionary
DualStream64 memory controller, providing lightening fast access to system memory
to enable unparalleled performance in power-hungry 3D graphics and multimedia
applications, so providing the optimum platform for today’s most demanding PC
enthusiasts and professionals.
Figure 1: VIA PT880 Block Diagram
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Copyright © VIA Technologies, Inc, 2003.
Third party brands and names are the property of their respective owner.VIA PT880
Intuitive Technologies Powering the Pentium 4 Platform
DualStream64 Memory Controller
Harnessing revolutionary new intuitive technologies,
the VIA DualStream64 memory controller enables
lightning fast access to system memory and optimum
system performance through an enhanced data
prefetch protocol.
Further performance enhancements include improved memory branch prediction,
utilizing a larger on-chip branch table, and tighter read/write turnaround for
significantly improved clock timings. With an asynchronous bus design, the PT880
allows maximum system flexibility and optimization options, as demanded by today’s
power users.
Figure 2 below shows the SiSoft Sandra benchmark for testing the memory bandwidth
performance of competing platforms; the VIA PT880 clearly enjoys a significant
memory bandwidth boost from DualStream64’s intuitive technologies, through the
expanded array of prefetch buffers, superior data prediction technology and lower
latency clock cycles.
Figure 2: Memory Bandwidth Performance: SiSoft Sandra Benchmark

您好，VIA PT880芯片组是一种由VIA Technology公司开发的主板芯片组，主要用于个人计算机（PC）的主板设计。这款芯片组主要负责连接CPU（中央处理器）和系统其他组件，如内存、显卡、IDE/ATAPI接口、USB端口、PCI-E插槽等。它在早期的台式机中被广泛应用，提供基本的I/O控制和数据传输功能。 PT880芯片组的特点可能包括： 1. 支持多种CPU架构：它可能支持Intel或AMD的处理器，如Athlon XP或Pentium 4等。 2. 内存管理：支持DDR SDRAM，为当时的高性能计算提供了必要的内存扩展能力。 3. 高速接口：可能包括多个PCI插槽，以及一些早期的USB版本。 4. 显卡集成或扩展：可能内置集成显卡，或者支持AGP插槽以连接独立显卡。 5. 稳定性和兼容性：通过优秀的BIOS设计，确保系统的稳定运行和兼容各种硬件设备。 请注意，具体的技术细节可能会因时间而变化，VIA后来并入了Intel，所以现在的芯片组可能已经更新为Intel的版本。如果您有关于VIA PT880芯片组的具体问题，比如兼容性、升级建议或故障排查，请详细告诉我，我会尽力帮助您。