VIA announced the VIA K8T890 chipset, enabling advanced PCI Express
connectivity on motherboards for the latest AMD Athlon™ 64, AMD Opteron™, and
AMD Sempron™ processors. The VIA K8T890 chipset is designed to fully accommodate
the increased multimedia demands being placed on the PC through applications
such as high definition video creation, multistreaming audio and the latest 3D
game engines that require ever-increasing levels of system bandwidth.

Featuring the unique VIA Flex Express Architecture, the VIA K8T890 chipset
provides support for the latest high performance PCI Express x16 graphics cards,
benefiting from a blistering 4GB/s of bandwidth, both upstream and downstream.
The K8T890 chipset also supports up to four PCI Express x1 connections, each
offering 250MB/s bandwidth per direction to a wide range of high bandwidth
peripheral devices – approximately double the maximum theoretical bandwidth
provided by existing PCI 2.2 peripheral connections. Among the peripheral
devices most likely to benefit from the increased bandwidth will be Gigabit
Ethernet connections and bandwidth hungry HDTV tuner cards, which will be able
to perform to their full potential without the constraints of limited bus
bandwidth.

VIA Technologies, Inc, a leading innovator and developer of silicon chip
technologies and PC platform solutions, today announced the VIA K8T890 chipset,
enabling advanced PCI Express connectivity on motherboards for the latest AMD
Athlon™ 64, AMD Opteron™, and AMD Sempron™ processors.

The VIA K8T890 chipset is designed to fully accommodate the increased multimedia
demands being placed on the PC through applications such as high definition
video creation, multistreaming audio and the latest 3D game engines that require
ever-increasing levels of system bandwidth. Featuring the unique VIA Flex
Express Architecture, the VIA K8T890 chipset provides support for the latest
high performance PCI Express x16 graphics cards, benefiting from a blistering
4GB/s of bandwidth, both upstream and downstream.

The K8T890 chipset also supports up to four PCI Express x1 connections, each
offering 250MB/s bandwidth per direction to a wide range of high bandwidth
peripheral devices – approximately double the maximum theoretical bandwidth
provided by existing PCI 2.2 peripheral connections. Among the peripheral
devices most likely to benefit from the increased bandwidth will be Gigabit
Ethernet connections and bandwidth hungry HDTV tuner cards, which will be able
to perform to their full potential without the constraints of limited bus
bandwidth.

“With the arrival of the VIA K8T890 Series chipsets, VIA continues its strong
leadership on the AMD platform, delivering the features, performance, and
stability that our customers have come to expect,” commented Wenchi Chen, CEO
VIA Technologies Inc. “By enabling PCI Express we believe that all the pieces
are in place on the AMD64 processor platform, meaning all users can now upgrade
to a 64-bit AMD processor, safe in the knowledge they have a future proof
platform.”

“As one of our premier partners, we are very pleased to see VIA bring PCI
Express support to the AMD64 platform,” commented Marty Seyer, corporate vice
president and general manager of AMD’s Microprocessor Business Unit. “Combining
the phenomenal bandwidth of PCI Express connectivity with HyperTransport™
technology as well as the latest high-performance graphics cards and peripheral
devices, customers can continue to unleash the full performance potential of
AMD64 technology.”

About VIA Flex Express Architecture
The VIA Flex Express Architecture has been designed to allow flexible
implementations of VIA core-logic chipsets supporting PCI Express. Multiple
device configurations can be implemented, with support for up to five PCI
Express devices directly into the chipset North Bridge and a total of 20 PCI
Express lanes for a combined bandwidth of 5GB/s.

With today’s PC users increasingly using multiple HDDs, optical drives and
USB/1394 devices, heavier data loads are being placed on the chipset’s South
Bridge, the ability to avoid bottlenecks between the chipset’s North and South
Bridge is crucial to maintaining a consistent level of system performance. The
VIA Flex Express architecture meets this challenge by providing PCI Express x1
connections directly routed through the chipset’s North Bridge, thereby avoiding
potential data bottlenecks in the chipset’s North to South Bridge link and
reducing latency.

About the VIA K8T890 Chipset
Designed to support a complete range of AMD Athlon 64, AMD Athlon 64 FX and AMD
Opteron as well as 754- and 939-pin versions of AMD Sempron processors, the VIA
K8T890 delivers high performance, comprehensive features, and rock solid
stability. The K8T890 chipset includes support for the latest PCI Express x16
graphics cards, and four PCI Express x1 connections to high speed PCI Express
peripherals.

The VIA K8T890 chipset also features asynchronous bus architecture, providing
improved system optimization options to enable power users to squeeze the very
most out of their systems.

With a high bandwidth Ultra V-link bus, the K8T890 allows communication between
the North and South bridges at a blazing 1GB/s, reducing the likelihood in any
I/O bandwidth bottlenecks. When combined with the market-leading VIA VT8237
South Bridge and a broad array of VIA companion chips, the VIA K8T890 chipset
provides the most comprehensive range of storage, multimedia and connectivity
features available for the AMD64 processor platform today, including native
Serial ATA and V-RAID, 6-channel or 8-channel VIA Vinyl audio, USB2.0, and 1394.

The VIA K8T890 is part of VIA’s acclaimed Modular Architecture Platform (V-MAP),
which minimizes design times and time-to-market for motherboard partners through
a flexible, pin-compatible design approach for VIA core-logic solutions.
Motherboard partners are able to cover multiple market segments with fewer
design resources, and also benefit from a single unified driver base.

k8t890 blkdiagram VIA K8T890 PCI Express K8 Chipset

Features of VIA K8T890
 

Feature
VIA K8T890
North Bridge 
Processor
Support
AMD Opteron /
Athlon FX / Athlon 64 / Sempron (939 pin & 754 pin)
Front Side Bus1GHz/16-bit
(Upstream & Downstream)
PCI Express Graphics
Support
PCI Express x16 Graphics
PCI Express Peripheral
Support
4 PCI Express x1
Memory SupportDDR memory
controller integrated directly into AMD64 processor¹
Bus
Architecture
Asynchronous
South Bridge
VIA VT8237
North/South
Bridge Link
Ultra V-Link
(1066MB/s)
AudioVIA Vinyl™
6-channel Audio (AC’97 integrated)


VIA Vinyl™ Gold 8-channel Audio² (PCI companion controller)

NetworkingVIA Velocity™
Gigabit Ethernet (PCI companion controller)

VIA integrated 10/100 Fast Ethernet

PCI
Devices/Slots
6 slots
SATADual Channel
Serial ATA supports 2 SATA devices


SATALite™ interface for two additional SATA devices 4 total)

V-RAID RAID 0, RAID
1, and RAID 0+1³ & JBOD (SATA)
IDEParallel
ATA133 (up to 4 devices)
High Speed USB8 ports
ModemMC’97
Package933 Ball Grid
Array
Power
Management
ACPI/APM/PCI/PM/HTSTOP
Power1.5V core,
0.15um process