This is a list of

computer A computer is a machine that can be programmed to Execution (computing), carry out sequences of arithmetic or logical operations (computation) automatically. Modern digital electronic computers can perform generic sets of operations known as C ...

motherboard A motherboard (also called mainboard, main circuit board, mb, mboard, backplane board, base board, system board, logic board (only in Apple computers) or mobo) is the main printed circuit board (PCB) in general-purpose computers and other expand ...

chipsets made by VIA Technologies. Northbridge chips are listed first, primarily by CPU-socket or CPU-family; southbridge chips are listed in a later table.

Background

VIA chipsets support CPUs from Intel, AMD (e.g. the

Athlon 64 The Athlon 64 is a ninth-generation, AMD64-architecture microprocessor produced by Advanced Micro Devices (AMD), released on September 23, 2003. It is the third processor to bear the name ''Athlon'', and the immediate successor to the Athlon XP. T ...

) and VIA themselves (e.g. the VIA C3 or C7). They support CPUs as old as the

i386 The Intel 386, originally released as 80386 and later renamed i386, is a 32-bit microprocessor introduced in 1985. The first versions had 275,000 transistorsS3 Graphics beginning in 2001; this support continued into the early 2010s, with the release of the VX11H in August 2012. VIA chipsets declined in popularity as other chipsets began to offer better performance, VIA entered other markets and Intel began to offer more powerful integrated graphics on their CPU dies.

Chipsets by CPU socket

The term ''V-Link'' indicates VIA's northbridge/ southbridge interconnect bus.

Socket 3

Socket 5 and Socket 7

All chipsets listed support a maximum cache memory size of 2 MB and are PCI 2.1 compliant * The only difference between the Apollo Master and the Apollo Master Plus is that the Plus does not support pipelined burst cache memory. * The Apollo VP and Apollo VP2 chipsets were initially referenced by VIA as Apollo VP-1 and Apollo VP-2 respectively, later renamed to Apollo VP and Apollo VP2 when the "/97" upgrades became available. * The Apollo VPX chipset is a low-cost solution that replaced the Apollo VP but with features similar to the VP2. *

AMD Advanced Micro Devices, Inc. (AMD) is an American multinational semiconductor company based in Santa Clara, California, that develops computer processors and related technologies for business and consumer markets. While it initially manufactur ...

licensed the VIA Apollo VP2/97 core logic architecture for its AMD 640 chipset.

Socket 8, Slot 1 and Socket 370

* ''ProSavage PM133'' - graphics core from S3, derived from a combination of the 3D component of Savage4 and 2D from Savage 2000. * ''PLE133'' and ''PLE133T'' - graphics core from

Trident A trident is a three- pronged spear. It is used for spear fishing and historically as a polearm. The trident is the weapon of Poseidon, or Neptune, the God of the Sea in classical mythology. The trident may occasionally be held by other marine ...

, derived from Blade3D. * ''CLE266'' (Castle Rock) - graphics core from S3, derived from S3 Savage series under the brand name UniChrome. * Asus advertised some boards as Apollo Pro 133Z. 133Z appears to be a late revision of or step up from 133A, but it is not listed on the VIA site.

Slot A and Socket A

*KT266 contains a hardware bug which causes system instability when using the AGP slot at the specified max capacity of 4×. *''ProSavage KM133, KM133A, KM266, KM400, KM400A'' - Similar to the above, but with integrated graphics. After KM133, DDR is supported. The KM133 uses an IGP consisting of the S3 Savage4 3D core and Savage 2000 2D functionality. KM266's ProSavage8 IGP is similar but has an additional 3D pipeline. The KM400 chipset and its "A" variant use the VIA UniChrome IGP. KM400A supports FSB 400 unlike the KT400A *Later revisions of the KT333 (sometimes called KT333CF) are rebadged KT400 chips with AGP 8x disabled. On motherboards with this chipset AGP 2x cards which require 3.3V are not supported. *KT133E (= VT8363E + VT82C686B) appears on Gigabyte 7IXEH but is not listed on the VIA site. Based on the specifications of that motherboard, KT133E appears to be equivalent to (or a cost-reduced rehash of) KT133, supporting 133 MHz for memory but only 100 MHz for the CPU. *Some revisions of KT333 support 166 MHz FSB.

Socket 423, 478 and LGA 775

* Being a reduced version of PM880, PM800 is not as closely related to PT800 as P4M890 to PT890. Because of its high cost, It is soon obsoleted in favor of P4M800 and then P4M800 Pro, both of which have a lower rated V-Link and feature no special memory technology such as FastStream64 or StepUp that is common in the other listed 8xx chipsets. * VIA PT890, P4M890, PT900, P4M900 – VIA's PCIe-only chipsets. The P4M chipsets have onboard graphics VIA UniChrome Pro.
VIA Chipsets P4 Series for Intel CPU Comparison Chart

Socket 754, 939, 940, AM2

* VIA K8M890, K8T890, K8T900 – VIA's PCIe-only chipsets. *The K8M800 chipsets has the onboard graphics VIA UniChrome Pro; the K8M890 has the Chrome9. * The Athlon 64 chipsets do not have memory controllers, because memory controller is integrated into the CPU. Supported memory types depend on the CPU and socket used.
VIA Chipsets K8 Series for AMD CPU Comparison Chart
* The K8M890 was also used on boards with Socket 754, like the ASUS K8V-VM Ultr

Chipsets supporting both VIA and Intel processors

* VIA VX700 - Supports VIA C7-M or C7-ULV 533/400 MHz FSB **DDR2 533/400/333 or DDR400/333 **Utilizes the VIA UniChrome Pro Integrated Graphics Processor (IGP) *VIA VN800 – Supports VIA C7, VIA C7-M / Intel

Pentium M The Pentium M is a family of mobile 32-bit single-core x86 microprocessors (with the modified Intel P6 microarchitecture) introduced in March 2003 and forming a part of the Intel Carmel notebook platform under the then new Centrino brand. The '' ...

/ Celeron M, and Yonah (Core Solo and Core Duo) Processors **VIA UniChrome Pro II Integrated Graphics Processor (200 MHz core clock) **DirectX 7 **Support product: (VIA EPIA
VB6002G
Mini-ITX Board) ** * - Cited in marketing literature as supporting up to 4GB DDR2 SDRAM; only supported up to 1GB DDR2 max actual per memory-slot. Motherboards with 1-slot support 1GB-max; motherboards with 2-slots support 2GB-max, etc. *VIA VN896 (Mobile) and VIA CN896 (Desktop). **VIA VN896(Mobile) can support Intel Pentium M / Celeron M, Core Solo / Core Duo, and Core2 Duo Processors **Support product: (BenQ Joybook R42) * VIA VX800 ** First VIA mobile chipset to support DirectX 9.0 (Pixel Shader 2.0) ** VIA Chrome9 HC3 Integrated Graphics Processor (250 MHz engine clock, up to 256 MB frame buffer) ** Built-in VIA Vinyl HD Audio controller supporting up to eight high-definition channels with a 192 kHz sampling rate and 32-bit sample depth ** Supports 400/800 MHz FSB ** Supports up to 4 GB of RAM with two 64-bit DDR2-667 DIMMs ** Single-chip solution (no southbridge or ''V-Link'' required) ** Designed towards being used with the

VIA Isaiah Isaiah ( or ; he, , ''Yəšaʿyāhū'', "God is Salvation"), also known as Isaias, was the 8th-century BC Israelite prophet after whom the Book of Isaiah is named. Within the text of the Book of Isaiah, Isaiah himself is referred to as "the ...

64-bit processor. ** Maximum power consumption (TDP max) of 5 watts. * VIA VX800U ** Similar to the VIA VX800 ** VIA Chrome9 HC3 integrated graphics (166 MHz engine clock, up to 256 MB frame buffer) ** Supports a 400 MT/s FSB ** Supports up to 4GBs of RAM with two 64-bit DDR2-400 DIMMs ** Does not support PCIe or SATA due to their power requirements ** Maximum power consumption of 3.5 watts ** Intended for very low-power devices * VIA VX855 ** Full hardware acceleration of H.264,

MPEG-2 MPEG-2 (a.k.a. H.222/H.262 as was defined by the ITU) is a standard for "the generic video coding format, coding of moving pictures and associated audio information". It describes a combination of Lossy compression, lossy video compression and ...

and

WMV9 Windows Media Video (WMV) is a series of video codecs and their corresponding video coding formats developed by Microsoft. It is part of the Windows Media framework. WMV consists of three distinct codecs: The original video compression technology ...

** Single-chip solution (no southbridge or ''V-Link'' required) **Maximum power consumption of 2.3 watts * VIA VN1000 **

DirectX Microsoft DirectX is a collection of application programming interfaces (APIs) for handling tasks related to multimedia, especially game programming and video, on Microsoft platforms. Originally, the names of these APIs all began with "Direct", ...

10.1 **32 stream processors and 4 sampling units, supports Shader Model 4,

OpenGL OpenGL (Open Graphics Library) is a cross-language, cross-platform application programming interface (API) for rendering 2D and 3D vector graphics. The API is typically used to interact with a graphics processing unit (GPU), to achieve hardwa ...

3.0 and

OpenCL OpenCL (Open Computing Language) is a framework for writing programs that execute across heterogeneous platforms consisting of central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), field-progra ...

1.0 for GPGPU applications. **Acceleration of

Blu-ray The Blu-ray Disc (BD), often known simply as Blu-ray, is a digital optical disc data storage format. It was invented and developed in 2005 and released on June 20, 2006 worldwide. It is designed to supersede the DVD format, and capable of sto ...

, MPEG-2,

WMV-HD Windows Media High Definition Video (WMV HD) is the marketing name for high definition videos encoded using Microsoft Windows Media Video 9 codecs. These low-complexity codecs make it possible to watch high definition movies in 1280×720 (720p) ...

VC-1 SMPTE 421, informally known as VC-1, is a video coding format. Most of it was initially developed as Microsoft's proprietary video format Windows Media Video 9 in 2003. With some enhancements including the development of a new Advanced Profile, ...

and H.264

Chipsets supporting VIA processors

* VIA VX900 ** Similar to VX855, but more expansion options * VIA VX11/H **First VIA chipset built on the 40 nm CMOS process **Maximum power consumption of 5.8 watts **DDR3-1333 memory with maximum memory capacity of 16 GB **Integrated ChromotionTM 5.0 DX11 2D/3D graphics & video processor **

11,

3.2. **Acceleration of

, MPEG-2,

and H.264 **A card reader interface with support for MMC, MS Pro HG, and SDHC/SDXC

Southbridge chips

* The SATALite interface allows for two additional SATA devices (4 total). It is required for RAID 0+1 on VT8237R Plus. * The SATA-II feature of VT8237S is limited to 300 MB/S Data Transfer Rate bearing no NCQ functionality. * Motherboards frequently had VIA companion chips for added functionality such as better audio (8 channel), more/faster USB (i.e. USB 2.0 for VT8233), or

Gigabit Ethernet In computer networking, Gigabit Ethernet (GbE or 1 GigE) is the term applied to transmitting Ethernet frames at a rate of a gigabit per second. The most popular variant, 1000BASE-T, is defined by the IEEE 802.3ab standard. It came into use i ...

. * 8233: while AC97 could help offer a faux modem, this feature is not "on the board" and (some) boards did not come with a modem connector bought from store in box * 8233: manual does not mention 3com 10/100 at all and there is not connector - I believe the citation above to be possibly made by someone who does not have 8233 As a modular solution, the North and South Bridge of the VIA Apollo KT266A are completely pin compatible with current and future products, such as the VT8233C South Bridge with integrated 3Com Ethernet MAC.

Hardware bugs

The KT133 chipset corrupted disk subsystems; specifically, the 686B Southbridge had issues with Creative's SBLive! sound cards. A BIOS update was released by VIA to fix this issue; however, it is not known if all motherboards with 686Bs had their BIOSes updated. 080204 ntcompatible.com The KT266 contains a hardware bug which can cause system instability when using the AGP slot at the 4× speed.

References

External links

VIA's chipsets list
{{DEFAULTSORT:List Of Via Chipsets

VIA Via or VIA may refer to the following: Science and technology * MOS Technology 6522, Versatile Interface Adapter * ''Via'' (moth), a genus of moths in the family Noctuidae * Via (electronics), a through-connection * VIA Technologies, a Taiwan ...

VIA Technologies VIA Technologies chipsets