VPX-64 64bit/66MHz PCI Controller
The VPX-64 64bit PCI Controller (model number VT8101) is a companion chip that allows existing VIA chipsets to support high-bandwidth 64bit PCI in both 33MHz and 66MHz modes. VPX-64 enables VIA
Apollo chipsets to offer up to 533MB/s of PCI bandwidth for high end peripherals like Gigabit Ethernet, Fibre Channel and Ultra SCSI/320 and is perfect for implementation in server systems based on
the VIA Apollo P4X266A. VPX-64 also supports up to six traditional 32bit/33MHz PCI devices, allowing VPX-64 equipped system designs to support no less than 10 PCI devices, and up to 12 in total.
VPX-64 is available in a 27x27mm, 265 pin PGA package. VPX-64 interfaces directly to the dual mode AGP/XIP port present in existing V-MAP compatible chipsets.
High-Speed V-Link Hub Architecture
The VIA Apollo P4X266A takes advantage of VIA's high performance V-Link Hub Architecture, which provides a dedicated 266MB/s bus between the North and South Bridge. Less advanced chipsets use the
132MB/s PCI bus as a link, which must be shared with all PCI peripherals. V-Link greatly improves data transfer rates when high-speed interconnect technologies such as USB2.0, IEEE1394, and ATA/133
are implemented in a single system.
V-MAP
The VIA Apollo P4X266A is part of the family of VIA Modular Architecture Platforms (V-MAP). As a modular solution, the North and South Bridge of VIA Apollo P4X266A are completely pin compatible
with current and future products. The VT8753A North Bridge of P4X266A is pin compatible with the VT8753 of P4X266, and the VT8751 of P4M266. Additionally, VT8753A can interface with three separate
pin-compatible South Bridges: The VT8233 offering VIA Ethernet MAC, the VT8233C featuring 3Com Ethernet MAC, and the VT8233A supporting the new ATA/133 drive standard. With this wide range of
pin-compatible products, up to six distinct chipsets are possible for Intel? Pentium? 4 processors while using the same motherboard design.
Performance Driven Design
Using the highly efficient memory controller of the renowned VIA Apollo KT266A, the VIA Apollo P4X266A offers exceptionally high memory performance. This is accomplished through improved timings
and deepened queues. Supporting up to 4GB of DDR200 or DDR266 memory, the VIA Apollo P4X266A provides lightning fast access to system memory. Moreover, the VIA Apollo P4X266A offers a highly
developed AGP4X interface, ensuring the highest possible graphics performance with a myriad of AGP4X graphics accelerators.
Enhanced Processor Bus
The VIA Apollo P4X266A features an enhanced processor bus interface that more efficiently takes advantage of the quad pumped bus of the Intel? Pentium? 4 processor. Now, up to 12 instructions can
be queued in the processor bus interface, allowing the high speed 400MHz bus of current and Pentium? 4 processors to run at optimal efficiency. This also reduces latency between the processor and
other peripherals and devices, which improves overall system operation. The VIA Apollo P4X266A also offers support for high bus speeds, allowing seamless upgradeability to possible future
processors.
5 slots
3Com? (VT8233C)
VIA 10/100 Ethernet MAC
AC'97 integrated 2 channel audio
The VIA Apollo P4X266A further expands VIA's extensive line of Intel? Pentium? 4 chipsets. VIA now offers Pentium 4 platform solutions from top to bottom, with the VIA ProSavage P4M266 offering SMA graphics for the low end, the VIA Apollo P4X266 offering mainstream discrete performance, and the new VIA Apollo P4X266A covering the high end extreme performance segment.
Latest in a long line of "A" branded chipsets, the VIA Apollo P4X266A follows in the footsteps of previous successful designs. Starting with the VIA Apollo Pro133A, and continuing with the VIA Apollo KT133A and KT266A, the "A" line of performance chipsets have developed into a solid and well recognized force in the marketplace. "A" series chipsets demonstrate VIA's commitment to the continual evolution of platform design.
In its never ending quest to drive the advancement of PC platform technology, VIA Technologies Inc. is constantly working to improve current chipset designs. The latest fruits of this drive towards evolution is the VIA Apollo P4X266A. Featuring the same performance enhancement technology as the successful Apollo KT266A, the Apollo P4X266A pushes the performance envelope even further, yet takes advantage of industry standard DDR266 memory. |
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