Comparison: Chipsets For Pentium 4 Swipe to scroll horizontally
Chipset Intel 850E Intel 845G Intel 845E SiS 648 SiS 645DX SiS 645 Introduction May 2002 May 2002 May 2002 November 2002 March 2002 November 2001 Processor Plattform Socket 478 Socket 478 Socket 478 Socket 478 Socket 478 Socket 478 Supported CPU Intel Pentium 4 Intel Pentium 4 Intel Pentium 4 Intel Pentium 4 Intel Pentium 4 Intel Pentium 4 Chipset Northbridge Intel KC82850E Intel RG82845G Intel RG8245EES SiS 648 SiS 645DX SiS 645 Chipset Southbridge Intel 82801 BA Intel 82801 DB Intel 82801 DB SiS 961 SiS 961 SiS 961 Front Side Bus Clock 100/133 MHz 100/133 MHz 100/133 MHz 100/133 MHz 100/133 MHz 100 MHz Memory Clock 400 MHz/533 MHz 100/133/166 MHz 100/133 MHz 400/533/600 MHz 100/133/166/200 MHz 100/133 MHz Asynchronous Memory Clock yes yes yes yes yes yes FSB-Overclocking up to 166 MHz up to 166 MHz up to 166 MHz up to 200 MHz up to 166 MHz up to 133 MHz max. # DIMM-Slots 4 3 3 4 3 3 max. Memory 2048 MB 3072 MB 3072 MB 2048 MB 3072 MB 3072 MB SDRAM Support no yes yes no yes yes DDR SDRAM Support no yes yes yes yes yes VC SDRAM Support no no no no no no RDRAM Support (Rambus) yes no no no no no Dual RDRAM Support (Rambus) yes no no no no no Ultra-DMA/33/66/100 yes/yes/yes yes/yes/yes yes/yes/yes yes/yes/yes yes/yes/yes yes/yes/yes Ultra-DMA/133 no no no yes no no Max. # USB 4 4 4 4 4 4 USB 2.0 no yes yes yes no no Max.# PCI Slots 6 6 6 6 6 6 Integrated Graphics no yes no yes yes yes AGP 1x / 2x / 4x yes / yes / yes yes / yes / yes yes / yes / yes yes / yes / yes yes / yes / yes yes / yes / yes AGP 8x no no no yes no no ACPI Features yes yes yes yes yes yes
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Chipset Intel 850 Intel 845D Intel 845 VIA P4X333 VIA P4X266 VIA P4X266A Introduction January 2001 December 2001 July 2001 May 2002 August 2001 December 2001 Processor Plattform Socket 423/478 Socket 478 Socket 423/478 Socket 478 Socket 423/478 Socket 478 Supported CPU Intel Pentium 4 Intel Pentium 4 Intel Pentium 4 Intel Pentium 4 Intel Pentium 4 Intel Pentium 4 Chipset Northbridge Intel KC82850 Intel 82845 Intel 82845 VIA P4X333 VIA VT8753 VIA P4X266A Chipset Southbridge Intel 82801 BA Intel 82801 BA Intel 82801 BA VIA VT8233A VIA VT8233 VIA VT8233A Front Side Bus Clock 100/133 MHz 66/100/133 MHz 66/100/133 MHz 100/133 MHz 100 MHz 100 MHz Memory Clock 400 MHz 100/133 MHz 100/133 MHz 100/133/166 MHz 100/133 MHz 100/133 MHz Asynchronous Memory Clock yes yes yes yes yes yes FSB-Overclocking up to 133 MHz up to 166 MHz up to 180 MHz up to 200 MHz up to 180 MHz up to 180 MHz max. # DIMM-Slots 4 3 4 4 4 4 max. Memory 2048 MB 2048 MB 2048 MB 3072 MB 4096 MB 3072 MB SDRAM Support no no yes yes yes yes DDR SDRAM Support no yes no yes yes yes VC SDRAM Support no no no yes yes yes RDRAM Support (Rambus) yes no no no no no Dual RDRAM Support (Rambus) yes no no no no no Ultra-DMA/33/66/100 yes/yes/yes yes/yes/yes yes/yes/yes yes/yes/yes yes/yes/yes yes/yes/yes Ultra-DMA/133 no no no yes no yes Max. # USB 4 4 6 6 6 6 USB 2.0 no no yes yes no yes Max.# PCI Slots 6 6 6 5 5 5 Integrated Graphics no no no no no no AGP 1x / 2x / 4x yes / yes / yes yes / yes / yes yes / yes / yes yes / yes / yes yes / yes / yes yes / yes / yes AGP 8x no no no yes no yes ACPI Features yes yes yes yes yes yes
The table above lists all of the chipsets currently available for the Intel platform (Socket 478). Older models with SDRAM support (such as the Intel 845) are not taken into consideration here, because boards with these chips haven't been produced and have not been available on the market for a long time now.