List of VIA chipsets

This is a list of computer motherboard 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) and VIA themselves (e.g. the VIA C3 or C7). They support CPUs as old as the i386 in the early 1990s. In the early 2000s, their chipsets began to offer on-chip graphics support from VIA's joint venture with S3 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

Chipset Part numbers South bridge Release date Processors FSB Memory types Memory bus Max. memory Max. cache Max. cacheable RAM Parity/
ECC		 PCI
VT82C470 VT82C470 386 25/33/40 MHz FPM 25/33/40 MHz ? ? ? No No
VT82C475 VT82C475 386 25/33/40 MHz FPM 25/33/40 MHz ? ? ? No No
VT82C486A VT82C486A + VT82C482 + VT82C483, VT82C505 (for PCI) VT82C482, VT82C505 1993 386, Socket 3 25/33/40 MHz FPM 25/33/40 MHz ? ? ? No 2.0 (w/ VT82C505)
VT82C495 VT82C495, VT82C491, VT82C480/1 VT82C491, VT82C480/1 1993 Socket 3 25/33/40 MHz FPM 25/33/40 MHz ? 1 MB ? No No
VT82C496G (Pluto) VT82C496G, VT82C505 (for PCI) VT82C505 1994 Socket 3 25/33/40 MHz FPM 25/33/40 MHz 128 MB 1 MB ? No 2.0 (w/ VT82C505)

Socket 5 and Socket 7

All chipsets listed support a maximum cache memory size of 2 MB and are PCI 2.1 compliant

Chipset OEM names Northbridge Southbridge Release date Processors FSB Memory types Memory bus Max. memory Max. cacheable RAM Parity/
ECC		 AGP IGP
Apollo Master (VT82C570M)[1] VT82C575M + VT82C577M (x2) VT82C576M + VT82C416 1995 Socket 5 50/60/66 MHz FPM, EDO, BEDO 66 MHz 1024 MB 1024 MB w/ 1 MB L2 No No No
Apollo Master Plus (VT82C570MV) VT82C575MV + VT82C577MV (x2) VT82C576MV + VT82C416MV 1995 Socket 5 50/60/66 MHz FPM, EDO, BEDO 66 MHz 1024 MB 1024 MB w/ 1 MB L2 No No No
Apollo VP (VT82C580VP) VX Pro, VX Two VT82C585VP + VT82C587VP (x2) VT82C586 Oct. 1995 (Announced) Q1 1996 (Available) Socket 7 50/60/66 MHz FPM, EDO, BEDO, SDRAM 66 MHz 512 MB 512 MB w/ 2 MB L2 No No No
Apollo VP2 (VT82C590) AMD-640 VT82C595 VT82C586A or VT82C586B (VP2/97) May 1996 (Announced) Q3 1996 (Available) Socket 7 50/60/66/75 MHz FPM, EDO, BEDO, SDRAM 66 MHz 512 MB 512 MB w/ 2 MB L2 Yes No No
Apollo VPX (VT82C580VPX) ETEQ 6618, TX Pro III, VX Pro+, VX Two VT82C585VPX + VT82C587VP (x2) VT82C586A or VT82C586B (VPX/97) Dec. 1996 (Announced) Q1 1997 (Available) Socket 7 50/60/66/75 MHz FPM, EDO, BEDO, SDRAM 66 MHz 512 MB 512 MB w/ 2 MB L2 No No No
Apollo VP3 ETEQ 6628 VT82C597 VT82C586B May 1997 (Announced) Q3 1997 (Available) Socket 7 66 MHz FPM, EDO, BEDO, SDRAM 66 MHz 1024 MB 1024 MB w/ 2 MB L2 Yes 2× No
Apollo MVP3[2] ETEQ 6638, AGP Pro PC-100 VT82C598AT or VT82C598MVP VT82C586B or VT82C596 Sept. 1997 (Announced) Q1 1998 (Available) Super Socket 7 66–100 MHz FPM, EDO, BEDO, SDRAM 66 - 100 MHz 768 MB 512 MB w/ 2 MB L2 Yes 2× No
Apollo MVP4[3] VIA GRA VT82C501 VT82C686A/B or VT82C596B Aug. 1998 (Announced) Q4 1998 (Available) Super Socket 7 66–100 MHz FPM, EDO, BEDO, SDRAM 66 - 100 MHz 768 MB 512 MB w/ 2 MB L2 Yes No Trident Blade3D
  • 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 licensed the VIA Apollo VP2/97 core logic architecture for its AMD 640 chipset.

Socket 8, Slot 1 and Socket 370

Chipset OEM names Northbridge Southbridge Release date Processors FSB SMP Memory types Memory bus Max. memory Parity/ECC PCI V-Link AGP IGP
Apollo P6 (VT82C680) VT82C685 + VT82C687 VT82C586A or VT82C586B Jan. 1996 (Announced) Q4 1996 (Available) Pentium Pro 66 MHz Yes FPM, EDO, BEDO, SDRAM 66 MHz 1.0 GB Yes 2.1 No No No
Apollo Pro BXpert VT82C691 VT82C586B or VT82C596 May 11, 1998 Pentium Pro, Pentium II 66/100 MHz No FPM, EDO, BEDO, SDRAM, VCSDRAM 66/100 MHz 1.0 GB Yes 2.1 No 2× No
Apollo Pro Plus BX Too VT82C693 VT82C596A or VT82C686A December 24, 1998 Pentium II, Celeron 66/100 MHz No FPM, EDO, SDRAM, VCSDRAM 66/100 MHz 1.0 GB Yes 2.1 No 2× No
Apollo Pro133 VT82C693A VT82C596B or VT82C686A July 19, 1999 Pentium II, Pentium III, Celeron 66/100/133 MHz No FPM, EDO, SDRAM, VCSDRAM 66/100/133 MHz 1.5 GB Yes 2.2 No 2× No
Apollo Pro133A VT82C694X or VT82C694MP VT82C596B or VT82C686A October 11, 1999 Pentium III, Pentium II 66/100/133 MHz Yes (VT82C694MP only) PC100/PC133 SDRAM, VCSDRAM 66/100/133 MHz 2.0 GB Yes 2.2 No 4× No
Apollo Pro133T VT82C694T VT82C686B May 30, 2001 Pentium III, Celeron, Pentium III Tualatin 66/100/133 MHz No PC100/PC133 SDRAM, VCSDRAM 66/100/133 MHz 2.0 GB Yes 2.2 No 4× No
Apollo Pro266 VT8633 VT8233 September 20, 2000 Pentium III, Celeron, C3 66/100/133 MHz Yes SDRAM, VCSDRAM, DDR SDRAM 200/266 MHz DDR SDRAM, 100/133 MHz SDRAM 4.0 GB Yes 2.2 Yes, 266 MB/s 4× No
Apollo Pro266T VT8653 VT8233C May 30, 2001 Pentium III, Celeron, Pentium III Tualatin, C3 66/100/133 MHz Yes SDRAM, VCSDRAM, DDR SDRAM 200/266 MHz DDR SDRAM, 100/133 MHz SDRAM 4.0 GB Yes 2.2 Yes, 266 MB/s 4× No
Apollo PM601 (ProMedia) VT8601 VT82C686A Pentium III, Celeron, C3 66/100/133 MHz No FPM, EDO, SDRAM, VCSDRAM 66/100/133 MHz 1.5 GB No 2.2 No No Yes (Trident Blade3D)
Apollo PLE133 VT8601A VT82C686B Pentium III, Celeron, C3 66/100/133 MHz No SDRAM 100/133 MHz 1.5 GB No 2.2 No No Yes (Trident Blade3D)
Apollo PLE133T VT8601T VT82C686B May 30, 2001 Pentium III, Pentium III Tualatin, Celeron, C3 66/100/133 MHz No SDRAM 66/100/133 MHz 1.5 GB No 2.2 No No Yes (Trident Blade3D)
ProSavage PL133T VT8604 VT82C686A/B May 30, 2001 Pentium III, Pentium II 66/100/133 MHz No PC100/PC133 SDRAM, VCSDRAM 66/100/133 MHz 2.0 GB 2.1 No No Yes (ProSavage™)
ProSavage PL133 VT8604 VT82C686A/B Pentium III, Pentium II 66/100/133 MHz No PC100/PC133 SDRAM, VCSDRAM 66/100/133 MHz 2.0 GB 2.1 No No Yes (ProSavage™)
ProSavage PM133 VT8605 VT82C686A/B December 1999[4] Pentium III, Pentium II 66/100/133 MHz No PC100/PC133 SDRAM, VCSDRAM 66/100/133 MHz 2.0 GB 2.1 No 4x Yes (ProSavage™)
CLE266

(Castle Rock)

VT8622/3 VT8233A, VT8235M, VT8235 Dec 2001 Pentium III, Celeron, Pentium III Tualatin, C3 66/100/133 MHz No SDRAM DDR 200/266 100/133 MHz 2.0 GB No 2.1 266 MB/s No Yes
  • 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, 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.[5] 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

Chipset Part numbers South bridge Release date Processors FSB Memory types Memory bus Max. memory V-Link AGP IGP
KX133[6] VT8371 VT82C686A Feb 2000 Athlon (Slot A) 200 MHz SDR SDRAM, VCSDRAM SDR 100/133 MHz 2.0 GB No 4×
KT133[7] VT8363 VT82C686A/B May 2000 Athlon, Duron (Socket A) 200 MHz SDR SDRAM, VCSDRAM SDR 100/133 MHz 1.5 GB No 4×
KT133E VT8363E VT82C686B 1 January 2001 [8] Athlon, Duron (Socket A) 200 MHz SDR SDRAM, VCSDRAM SDR 100/133 MHz 1.5 GB No 4×
KL133 VT8364 VT82C686A/B Athlon, Duron (Socket A) 200 MHz SDR SDRAM, VCSDRAM SDR 100/133 MHz 1.5 GB No No Yes (ProSavage™)
KM133 VT8365 VT82C686A/B Q3 2000 Athlon, Duron (Socket A) 200 MHz SDR SDRAM, VCSDRAM SDR 100/133 MHz 1.5 GB No 4× Yes (ProSavage™)
KLE133[9] VT8361 VT82C686B 2001 Athlon, Duron (Socket A) 200/266 MHz SDR SDRAM, VCSDRAM SDR 100/133 MHz 1.0 GB No No Yes (Trident Blade3D[10])
KT133A[11] VT8363A VT82C686B Dec 2000[12] Athlon, Athlon XP, Duron (Socket A) 200/266 MHz SDR SDRAM, VCSDRAM SDR 100/133 MHz 1.5 GB No 4×
KL133A VT8364A VT82C686B 2001 Athlon, Athlon XP, Duron (Socket A) 200/266 MHz SDR SDRAM, VCSDRAM SDR 100/133 MHz 1.5 GB No No Yes (ProSavage™)
KM133A VT8365A VT82C686B 2001 Athlon, Athlon XP, Duron (Socket A) 200/266 MHz SDR SDRAM, VCSDRAM SDR 100/133 MHz 1.5 GB No 4× Yes (ProSavage™)
KT266[13] VT8366 VT8231, VT8233 Jan 2001 Athlon, Athlon XP, Duron (Socket A) 200/266 MHz SDR SDRAM, DDR SDRAM SDR 100/133 MHz

DDR 200/266 MHz

4.0 GB 266 MB/s 4×
KM266 VT8375 VT8231, VT8233, VT8235 Sept 2001 Athlon, Athlon XP, Duron (Socket A) 200/266 MHz SDR SDRAM, DDR SDRAM SDR 100/133 MHz

DDR 200/266 MHz

4.0 GB 266 MB/s 4× Yes (ProSavage8™ DDR)
KT266A[14] VT8366A VT8231, VT8233, VT8233A, VT8235 Sept 2001 Athlon, Athlon XP, Duron (Socket A) 200/266 MHz SDR SDRAM, DDR SDRAM SDR 100/133 MHz

DDR 200/266 MHz

4.0 GB 266 MB/s 4×
KM266 Pro VT8235, VT8237, VT8237R(+) Athlon, Athlon XP, Duron, Sempron (Socket A) 200/266/333 MHz DDR SDRAM DDR 200/266/333 MHz 4.0 GB 266 MB/s 4× Yes (ProSavage8™ DDR)
KT333[15] VT8367 VT8233A, VT8235 Feb 2002 Athlon, Athlon XP, Duron, Sempron (Socket A) 200/266 MHz DDR SDRAM DDR 200/266/333 MHz 4.0 GB 266 MB/s 4×
KT333CE VT8367 VT8233A, VT8235 Apr 2002 Athlon, Athlon XP, Duron, Sempron (Socket A) 200/266/333 MHz DDR SDRAM DDR 200/266/333 MHz 4.0 GB 266 MB/s 4×
KT333CF VT8367 VT8235 Athlon, Athlon XP, Duron, Sempron (Socket A) 200/266/333 MHz DDR SDRAM DDR 200/266/333 MHz 4.0 GB 533 MB/s 4×
KT400[16] VT8368 VT8235, VT8237, VT8237R(+) Aug 2002 Athlon, Athlon XP, Duron, Sempron (Socket A) 200/266/333 MHz DDR SDRAM DDR 200/266/333 MHz 4.0 GB 533 MB/s 8×
KM400 VT8378 VT8235, VT8237, VT8237R(+) Athlon, Athlon XP, Duron, Sempron (Socket A) 200/266/333 MHz DDR SDRAM DDR 200/266/333 MHz 4.0 GB 533 MB/s 8× Yes (VIA UniChrome IGP)
KT400A[17] VT8377A VT8235, VT8237, VT8237R(+), VT8251 Mar 2003 Athlon, Athlon XP, Duron, Sempron (Socket A) 200/266/333 MHz DDR SDRAM DDR 200/266/333/400 MHz 4.0 GB 533 MB/s 8×
KM400A[18] VT8237, VT8237R(+), VT8251 Athlon, Athlon XP, Duron, Sempron (Socket A) 200/266/333/400 MHz DDR SDRAM DDR 200/266/333/400 MHz 4.0 GB 533 MB/s 8× Yes (VIA UniChrome IGP)
KT600[19] VT8377 VT8237, VT8237R(+), VT8251 May 2003 Athlon, Athlon XP, Duron, Sempron (Socket A) 200/266/333/400 MHz DDR SDRAM DDR 200/266/333/400 MHz 4.0 GB 533 MB/s 8×
KT880[20] VT8379 VT8237, VT8237R(+), VT8251 Feb 2004 Athlon, Athlon XP, Duron, Sempron (Socket A) 200/266/333/400 MHz DDR SDRAM Dual Channel DDR 200/266/333/400 MHz 4.0 GB 533 MB/s 8×
  • KT266 contains a hardware bug which causes system instability when using the AGP slot at the specified max capacity of 4×.[21]
  • 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 [22] 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

Chipset Part numbers South bridge Release date Socket Processors FSB Memory types Memory bus Max. memory V-Link AGP PCI-E IGP
P4X266[23] VT8753 VT8233/8233C Aug 2001[24] Socket 423

Socket 478

Pentium 4, Celeron 400 MHz SDR SDRAM,

DDR SDRAM

SDR 100/133 MHz

DDR 200/266 MHz

4.0 GB 266 MB/s 4× No No
P4M266[25] VT8751 VT8233/8233A/8233C Socket 478 Pentium 4, Celeron 400 MHz SDR SDRAM,

DDR SDRAM

SDR 100/133 MHz

DDR 200/266 MHz

4.0 GB 266 MB/s 4× No Yes (ProSavage8™ DDR)
P4X266E[26] VT8753 VT8233/8233C Socket 478 Pentium 4, Celeron, Celeron D 400/533 MHz SDR SDRAM,

DDR SDRAM

SDR 100/133 MHz

DDR 200/266 MHz

4.0 GB 266 MBs 4× No No
P4X266A[27] VT8753 VT8233/8233A/8233C Dec 2001[24] Socket 478 Pentium 4, Celeron 400/533 MHz SDR SDRAM,

DDR SDRAM

SDR 100/133 MHz

DDR 200/266 MHz

4.0 GB 266 MB/s 4× No No
P4M266A VT8233, VT8235 Socket 478 Pentium 4, Celeron 400/533 MHz SDR SDRAM,

DDR SDRAM

SDR 100/133 MHz

DDR 200/266 MHz

4.0 GB 266 MB/s 4× No Yes (ProSavage8™ DDR)
P4X333[28] VT8754 VIA VT8235 May 2002[24] Socket 478 Pentium 4, Celeron, Celeron D 400/533 MHz SDR SDRAM,

DDR SDRAM

SDR 100/133 MHz

DDR 200/266/333 MHz

4.0 GB 533 MB/s 8× No No
P4X400[29] VT8754 VIA VT8235 Socket 478 Pentium 4, Celeron, Celeron D 400/533 MHz DDR SDRAM DDR 200/266/333/400 MHz 4.0 GB 533 MB/s 8× No No
P4X533[30] VT8237, VT8237R(+) Socket 478 Pentium 4, Celeron, Celeron D 400/533 MHz DDR SDRAM DDR 200/266/333/400 MHz 4.0 GB 533 MB/s 8× No No
PT800[31] VT VT8237, VT8237R(+) Jul 2003 Socket 478

LGA 775

Pentium 4, Celeron, Celeron D 400/533/800 MHz DDR SDRAM DDR 200/266/333/400 MHz 3.0 GB 533 MB/s 8x No No
PM800[32] VT VT8237, VT8237R(+) Nov 2003 Socket 478

LGA 775

Pentium 4, Celeron, Celeron D 400/533/800 MHz DDR SDRAM DDR 200/266/333/400 MHz 3.0 GB 1066 MB/s 8x No Yes (VIA UniChrome IGP)
PT880[33] VT VT8237, VT8237R(+) Nov 2003 Socket 478

LGA 775

Pentium 4, Celeron, Celeron D 400/533/800 MHz Dual Channel DDR SDRAM DDR 200/266/333/400 MHz 4.0 GB 1066 MB/s 8x No No
PM880[34] VT VT8237, VT8237R(+) Nov 2003 Socket 478

LGA 775

Pentium 4, Celeron, Celeron D 400/533/800 MHz Dual Channel DDR SDRAM DDR 200/266/333/400 MHz 4.0 GB 1066 MB/s 8x No Yes (VIA UniChrome IGP)
P4M800[35] VT VT8237, VT8237R(+) Oct 2004 (Announced) Feb 2005 (Available) Socket 478

LGA 775

Pentium 4, Pentium D, Celeron, Celeron D 400/533/800 MHz DDR SDRAM DDR 200/266/333/400 MHz 3.0 GB 533 MB/s 8x No Yes (VIA UniChrome IGP)
P4M800 Pro[36] VT3344 VT8237, VT8237R(+) Sept 2005 Socket 478

LGA 775

Pentium 4, Pentium D, Celeron, Celeron D, Core 2 400/533/800/1066 MHz DDR SDRAM

DDR2 SDRAM

DDR 200/266/333/400 MHz

DDR2 400/533 MHz

2.0 GB 533 MB/s 8x No Yes (VIA UniChrome IGP)
PT880 Pro[37] VT VT8237, VT8237R(+) Jan 2005 Socket 478

LGA 775

Pentium 4, Pentium D, Celeron, Celeron D, Core 2 400/533/800 MHz Dual Channel DDR SDRAM

Dual Channel DDR2 SDRAM

DDR 200/266/333/400 MHz

DDR2 400/533 MHz

4.0 GB 1066 MB/s 8x x4 No
PT880 Ultra[38] VT VT8237, VT8237R(+), VT8237A, VT8237S Jan 2005 LGA 775 Pentium 4, Pentium D, Celeron, Celeron D, Core 2 533/800/1066 MHz Dual Channel DDR SDRAM

Dual Channel DDR2 SDRAM

DDR 266/333/400 MHz

DDR2 400/533/667 MHz

4.0 GB 1066 MB/s 8x x4 No
PT894[39] VT VT8237, VT8237R(+) Jan 2005 LGA 775 Pentium 4, Pentium D, Celeron, Celeron D 533/800/1066 MHz Dual Channel DDR SDRAM

Dual Channel DDR2 SDRAM

DDR 266/333/400 MHz

DDR2 400/533/667 MHz

4.0 GB 1066 MB/s No x16 No
PT894 Pro[40] VT VT8237, VT8237R(+) Jan 2005 LGA 775 Pentium 4, Pentium D, Celeron, Celeron D 533/800/1066 MHz Dual Channel DDR SDRAM

Dual Channel DDR2 SDRAM

DDR 266/333/400 MHz

DDR2 400/533/667 MHz

4.0 GB 1066 MB/s No x16 No
P4M890[41] VT VT8237, VT8237R(+), VT8237A Feb 2006 Socket 478

LGA 775

Pentium 4, Pentium D, Celeron, Celeron D, Core 2 400/533/800 MHz DDR SDRAM

DDR2 SDRAM

DDR 266/333/400 MHz

DDR2 400/533/667 MHz

4.0 GB 533 MB/s No x16 Yes (VIA UniChrome IGP)
PT890[42] VT VT8237, VT8237R(+), VT8237A Apr 2006 LGA 775 Pentium 4, Pentium D, Celeron, Celeron D, Core 2 533/800 MHz DDR SDRAM

DDR2 SDRAM

DDR 266/333/400 MHz

DDR2 400/533/667 MHz

4.0 GB 533 MB/s No x16 No
P4M900[43] VT VT8251 May 2006 Socket 478

LGA 775

Pentium 4, Pentium D, Celeron, Celeron D, Core 2 400/533/800/1066 MHz DDR SDRAM

DDR2 SDRAM

DDR 266/333/400 MHz

DDR2 400/533/667 MHz

4.0 GB 1066 MB/s No x16 Yes (VIA Chrome9 HC IGP)
PT900[44] VT VT8237, VT8237R(+), VT8237A May 2006 LGA 775 Pentium 4, Pentium D, Celeron, Celeron D, Core 2 533/800/1066 MHz DDR SDRAM

DDR2 SDRAM

DDR 266/333/400 MHz

DDR2 400/533/667 MHz

4.0 GB 1066 MB/s No x16 No
  • 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

Chipset IGP Part number South bridge Release date Processors Max. FSB SMP V-Link AGP PCI-Express IGP
K8T800[45] VT VT8235, VT8237, VT8237R(+), VT8251 Apr 2003 Socket 754/939/940 800 MHz Yes 533 MB/s 8x No No
K8M800[46] VT3108 VT8237, VT8237R(+), VT8251 Dec 2003 Socket 754/939/AM2 800 MHz No 533 MB/s 8x No Yes (VIA UniChrome IGP)
K8T800 Pro[47] VT VT8237, VT8237R(+), VT8251 May 2004 Socket 754/939/940 1 GHz Yes 1066 MB/s 8x No No
K8T890[48] VT VT8237, VT8237R(+), VT8251 Sept 2004 Socket 939/AM2 1 GHz No 1066 MB/s No x16 No
K8M890[49] VT3230 VT8237, VT8237R(+), VT8251 Oct 2005 Socket 754/939/AM2 1 GHz No 1066 MB/s No x16 Yes (VIA Chrome9 IGP)
K8T900[50] VT VT8237, VT8237R(+), VT8251 Nov 2005 Socket 939/AM2 1 GHz No 1066 MB/s No x16, Dual x8 No
  • 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 Ultra [1]

Chipsets supporting both VIA and Intel processors

Chipset

(Northbridge)

V = Mobile

C = Desktop

Internal

Unichrome

IGP

Part number

IGP South bridge Release date Processors FSB Memory types Memory bus Max. memory V-Link PCI AGP PCI-e Audio
CN400[51] VT3118 VIA UniChrome Pro VT8237R Mar 2004[52] VIA C3/C3-M/Eden/Eden-N 100/133/200 MHz DDR SDRAM up to 400 MHz 4GB Ultra V-Link (1GB/s) SB 4×/8× No SB (VIA Vinyl Audio)
CX700[53] VT3157 VIA UniChrome Pro II (single-chip solution) Jul 2006 Intel Pentium M/VIA C7-M/C7-M ULV 533/400 MHz DDR2/DDR SDRAM up to 533/400 MHz 2GB NA - (single-chip solution) 4 No No VIA Vinyl HD Audio
CN700[54] VT3344 VIA UniChrome Pro VT8237A/VT8251 2006 VIA C7 533/400 MHz DDR2/DDR SDRAM up to 533/400 MHz 2GB 533 MB/s SB 8× No SB (VIA Vinyl Audio)
VN800[55][56] VT3344 VIA UniChrome Pro VT8237A Aug 2005 VIA C7-M / Intel Pentium M

Socket-479 /

Yonah - Socket-M

533/400 MHz DDR2 SDRAM 400 or 533 MHz 4GB

1 GB *

533 MB/s 8× No SB (VIA Vinyl Audio)
CN800[57] VT3225 VIA UniChrome Pro VT8237R Plus Nov 2006 VIA C7/C7-D 533/400 MHz DDR2/DDR SDRAM up to 533/400 MHz 4GB 533 MB/s SB No ×16-1
×1-1		 SB (VIA Vinyl Audio)
CN896[58] VT3371 VIA Chrome9 HC VT8237S/VT8251 Feb 2007 VIA C7/C7-D/Eden (V4) 800/400 MHz DDR2/DDR SDRAM up to 667/400 MHz 4GB Ultra V-Link (1GB/s) SB No ×16-1
×1-1		 SB (VIA Vinyl HD Audio)
VX800[59] VT VIA Chrome9 HC3 (single-chip solution) Apr 2008 VIA Nano/C7/Eden 800/400 MHz DDR2 SDRAM up to 667 MHz 4GB NA - (single-chip solution) 4 No ×4-1
×1-2		 VIA Vinyl HD Audio
VX855[60] VT VIA Chrome9 HCM (single-chip solution) Mar 2009 VIA Nano/C7/Eden 800/400 MHz DDR2 SDRAM up to 800 MHz 4GB NA - (single-chip solution) No No No VIA Vinyl HD Audio
VN1000[61] VT VIA Chrome 520 VT8261 Dec 2010 VIA Nano/C7/C7-D/Eden (V4) 800/400 MHz DDR2/DDR3 SDRAM up to 800/1066 MHz 16GB Ultra V-Link (1GB/s) SB No ×8-1
×1-4		 SB (VIA Vinyl HD Audio)
  • 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-M / Intel Pentium M / Celeron M, and Yonah (Core Solo and Core Duo) Processors
    • VIA UniChrome Pro 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 4 GB DDR2 SDRAM; only supported up to 1 GB DDR2 max actual per memory-slot. Motherboards with 1-slot support 1 GB-max; motherboards with 2-slots support 2 GB-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 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 and WMV9
    • Single-chip solution (no southbridge or V-Link required)
    • Maximum power consumption of 2.3 watts
  • VIA VN1000

Chipsets supporting VIA processors

Chipset Part numbers South bridge Release date Processors FSB Memory types Memory bus Max. memory V-Link PCI AGP PCI-e USB IGP Audio TDP
2.0 3.0
VX900[62][63][64] VT (single-chip solution) Mar 2010 VIA Nano/X2/QuadCore/C7/Eden 400-1066 MT/s DDR2/DDR3 SDRAM up to 800 MHz/ 1066 MHz 8 GB (4GB per Module) NA - (single-chip solution) Yes No ×8-1
×1-3 		8 +1 Device port N/A VIA Chrome9 HD VIA Vinyl HD Audio 4.5W
VX11H[65][66] VT (single-chip solution) Aug 2012 VIA Nano/X2/QuadCore/C7/C7-D/Eden (V4) 533-1066 MT/s DDR3 SDRAM up to 1333 MHz 16 GB NA - (single-chip solution) Yes No ×4-1

x1-2 or
×2-1

x1-4

6 3 (1 shared as Device port) VIA Chrome 645/640 VIA Vinyl HD Audio 5.8W
  • 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
    • DirectX 11, OpenGL 3.2.
    • Acceleration of Blu-ray, MPEG-2, WMV-HD, VC-1 and H.264
    • A card reader interface with support for MMC, MS Pro HG, and SDHC/SDXC

Southbridge chips

Part number PATA SATA RAID North Bridge interconnect PCI PCI-e USB Audio Modem Ethernet Integrated super I/O
VT82C586 4 ATA33 No No PCI 1.1 No No
VT82C586A 4 ATA33 No No PCI 1.1 No No
VT82C586B 4 ATA33 No No PCI 1.1 No No
VT82C596A 4 ATA33 No No PCI 1.1 No No
VT82C596B 4 ATA66 No No PCI 1.1 No No
VT82C686A[6] 4 ATA66 No No PCI 4 1.1 AC'97 Yes No Yes
VT82C686B[11] 4 ATA100 No No PCI 4 1.1 AC'97 Yes No Yes
VT8231 4 ATA100 No No 4× V-Link 266 MB/s 4 1.1 AC'97 Yes VIA 10/100 Yes
VT8233[13] 4 ATA100 No No 4× V-Link 266 MB/s 6 1.1 AC'97 Yes VIA 10/100 (not on all/earlier) No
VT8233A[15] 4 ATA133 No No 4× V-Link 266 MB/s 4 1.1 AC'97 Yes No No
VT8233C[15] 4 ATA100 No No 4× V-Link 266 MB/s 6 1.1 AC'97 Yes (NOT ON ALL) 3Com 10/100 (NOT ON ALL) No
VT8235[15] 4 ATA133 No No 8× V-Link 533 MB/s 6 2.0 AC'97 Yes VIA 10/100 No
VT8237(R+)[17] 4 ATA133 2 SATA-150, SATALite* (SATA) RAID 0, 1, 0+1* & JBOD 8× V-Link 533 MB/s / Ultra V-Link (1GB/s) 8 2.0 AC'97 Yes VIA 10/100 No
VT8237A[67] 4 ATA133 2 SATA-150, SATALite* (SATA) RAID 0, 1, 0+1* & JBOD Ultra V-Link (1GB/s) 8 2.0 HD Audio Yes VIA 10/100 No
VT8237S* 4 ATA133 2 SATA-II, SATALite* (SATA) RAID 0, 1, 0+1* & JBOD Ultra V-Link (1GB/s) 8 2.0 HD Audio Yes VIA 10/100 No
VT8251[68] 4 ATA133 4 SATA-II (SATA) RAID 0, 1, 0+1* & JBOD Ultra V-Link (1GB/s) 7 ×1-2 8 2.0 HD Audio Yes VIA 10/100 No
VT8261[69] 2 ATA133 4 SATA-II No Ultra V-Link (1GB/s) 5 12 2.0 HD Audio Yes VIA 10/100/1000 No
  • The SATALite interface allows for two additional SATA devices (4 total) with use of a PHY chip which occupies the secondary PATA channel. It is required for RAID 0+1 on VT8237R Plus.
  • The VT8237 and VT8237R do not support SATA speed autonegotiation and will not work with SATA-II or III drives unless the drive has a compatibility mode jumper set. [70] The VT8237R Plus supports SATA II drives but only at the 150 MB/S speed.
  • 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.
  • The software modem is supported through a MC'97 or HD Audio codec chip and requires external components to implement the electrical connection to the telephone line. This circuitry may be included on the motherboard directly or added through a communications riser slot.
  • The chipset Ethernet MAC requires an additional PHY chip. Some vendors opted to add a MAC and PHY from a different manufacturer instead of using the chipset's built in capability.

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.[71][72][73][74] The KT266 contains a hardware bug which can cause system instability when using the AGP slot at the 4× speed.

See also

References

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