Comparison: VIA KT400 Vs. KT333 Vs. KT266A
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| Chipset | VIA Apollo KT400 | VIA Apollo KT333 | VIA Apollo KT266A | VIA Apollo KT266 |
|---|---|---|---|---|
| Introduction | September 2002 | February 2002 | September 2001 | April 2001 |
| Platform | Socket 462 | Socket 462 | Socket 462 | Socket 462 |
| Supported processors | AMD Duron/ Athlon/ XP | AMD Duron/ Athlon/ XP | AMD Duron/ Athlon/ XP | AMD Duron/ Athlon/ XP |
| Multi-processor support | no | no | no | no |
| Northbridge | VIA KT400 | VIA KT333 | VIA KT266A | VIA VT8366 |
| Southbridge | VIA VT8235 | VIA VT8233A | VIA VT8233 | VIA VT8233 |
| Front Side Bus clock | 100/133/166 MHz DDR | 100/133/166 MHz DDR | 100/133 MHz DDR | 100/133 MHz DDR |
| Memory clock | 100/133 /166/200 MHz DDR | 100/133 /166 MHz DDR | 100/133 MHz DDR | 100/133 MHz DDR |
| Asynchronous memory clock | yes | yes | yes | yes |
| FSB overclocking | up to 250 MHz | up to 230 MHz | up to 200 MHz | up to 200 MHz |
| Max. # DIMM slots | 4 | 4 | 4 | 4 |
| Max. memory | 3072 MB | 3072 MB | 3072 MB | 3072 MB |
| SDRAM support | yes | yes | yes | yes |
| DDR SDRAM support | yes | yes | yes | yes |
| Dual-channel DDR support | no | no | no | no |
| RIMM support (Rambus) | no | no | no | no |
| Ultra-DMA/33/66 /100/133 | yes/yes /yes/yes | yes/yes /yes/yes | yes/yes /yes/no | yes/yes /yes/no |
| # USB connectors | 6 | 6 | 6 | 6 |
| Max. # PCI slots | 6 | 6 | 6 | 6 |
| integrated graphics core | no | no | no | no |
| integrated sound | yes | yes | yes | yes |
| AGP 1x / 2x / 4x / 8x | yes/yes /yes/yes | yes/yes /yes/no | yes/yes /yes/no | yes/yes /yes/no |
| ACPI supported | yes | yes | yes | yes |
| USB 2.0 support | yes | yes | no | no |
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| Chipset | SiS 746 | Nvidia nForce | Nvidia nForce 2 | AMD 760 |
|---|---|---|---|---|
| Introduction | June 2002 | September 2001 | May 2002 | February 2001 |
| Platform | Socket 462 | Socket 462 | Socket 462 | Socket 462 |
| Supported processors | AMD Duron /Athlon/XP | AMD Duron /Athlon/XP | AMD Duron /Athlon/XP | AMD Duron /Athlon/XP |
| Multi-processor support | no | no | no | no |
| Northbridge | SiS 746 | Nvidia IGP 128 | Nvidia IGP 128 | AMD 761 |
| Southbridge | SiS 963 | Nvidia MCP-D | Nvidia MCP-D | AMD 765 |
| Front Side Bus clock | 66/100 /133/166 MHz DDR | 100/133 MHz DDR | 100/133 MHz DDR | 100/133 MHz DDR |
| Memory clock | 66/100 /133/166 MHz DDR | 100/133 MHz DDR | 100/133 /166/200 MHz DDR | 100/133 MHz DDR |
| Asynchronous memory clock | yes | yes | yes | yes |
| FSB overclocking | up to 200 MHz | up to 150 MHz | up to 240 MHz | up to 150 MHz |
| Max. # DIMM slots | 3 | 3 | 3 | 4 |
| Max. memory | 3072 MB | 3072 MB | 3072 MB | 2048 MB |
| SDRAM support | yes | no | no | no |
| DDR SDRAM support | yes | yes | yes | yes |
| Dual-channel DDR support | no | yes | yes | no |
| RIMM support (Rambus) | no | no | no | no |
| Ultra-DMA/33/66 /100/133 | yes/yes /yes/yes | yes/yes /yes/no | yes/yes /yes/no | yes/yes /yes/no |
| # USB connectors | 6 | 6 | 6 | 4 |
| Max. # PCI slots | 6 | 6 | 6 | 4 |
| integrated graphics core | no | yes | yes | no |
| integrated sound | yes | yes | yes | yes |
| AGP 1x / 2x / 4x / 8x | yes/yes /yes/yes | yes/yes /yes/no | yes/yes /yes/yes | yes/yes /yes/no |
| ACPI supported | yes | yes | yes | yes |
| USB 2.0 support | yes | no | yes | no |
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| Chipset | ALi Magik 1 | SiS 745 | SiS 735 |
|---|---|---|---|
| Introduction | February 2001 | May 2002 | May 2001 |
| Platform | Socket 462 | Socket 462 | Socket 462 |
| Supported processors | AMD Duron/Athlon/XP | AMD Duron/Athlon/XP | AMD Duron/Athlon/XP |
| Multi-processor support | no | no | no |
| Northbridge | ALi M1647 | SiS 745 | SiS 735 |
| Southbridge | ALi M1535D+ | integrated | integrated |
| Front Side Bus clock | 100/133 MHz DDR | 66/100/133/166 MHz DDR | 66/100/133 MHz DDR |
| Memory clock | 100/133 MHz DDR | 66/100/133/166 MHz DDR | 66/100/133 MHz DDR |
| Asynchronous memory clock | yes | yes | yes |
| FSB overclocking | up to 150 MHz | up to 200 MHz | up to 150 MHz |
| Max. # DIMM slots | 4 | 3 | 3 |
| Max. memory | 1024 MB | 3072 MB | 1536 MB |
| SDRAM support | yes | yes | yes |
| DDR SDRAM support | yes | yes | yes |
| Dual-channel DDR support | no | no | no |
| RIMM support (Rambus) | no | no | no |
| Ultra-DMA/33/66/100/133 | yes/yes/yes/no | yes/yes/yes/no | yes/yes/yes/no |
| # USB connectors | 6 | 6 | 6 |
| Max. # PCI slots | 6 | 6 | 6 |
| integrated graphics core | no | no | no |
| integrated sound | yes | yes | yes |
| AGP 1x / 2x / 4x / 8x | yes/yes/yes/no | yes/yes/yes/no | yes/yes/yes/no |
| ACPI supported | yes | yes | yes |
| USB 2.0 support | no | no | no |
The table above lists all the latest chipsets for the AMD platform (Socket 462) with DDR SDRAM support. Completely outmoded chipsets with SDRAM support (such as the VIA KT133 or KT133A) are not included here, because boards with these chips have not been produced or available on the market for quite a while.
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