Episode II: Attack of the Chipsets - Intel 845E and 845G for 533 MHz FSB and DDR-SDRAM

Pentium 4 Chipsets Compared

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Chipset SiS 645DX SiS 645 Intel 850E Intel 850 Intel 845D
Processor Platform Intel Pentium 4
Chipset Northbridge SiS 645DX SiS 645 Intel 82850E Intel 82850 Intel 82845
Chipset Southbridge SiS 961 SiS 961 Intel 82801 BA Intel 82801 BA Intel 82801 BA
Front Side Bus Clock 400/533 MHz 400 MHz 400/533 MHz 400 MHz 400 MHz
Memory Clock 100/133/166/200/266/333 MHz 100/133/200/266 MHz 400/533 MHz 400 MHz 200/266 MHz
Asynchronous Memory Clock yes yes yes yes yes
max. # of memory-Slots 3 3 4 4 3
max. Memory 3072 MB 3072 MB 2048 MB 2048 MB 2048 MB
SDRAM Support yes yes no no no
DDR SDRAM Support yes yes no no yes
RDRAM Support no no yes yes no
Ultra-DMA/33/66/100 yes/yes/yes yes/yes/yes yes/yes/yes yes/yes/yes yes/yes/yes
Ultra-DMA/133 no no no no no
Max. # USB ports 4 4 4 4 4
USB 2.0 no no no no no
Max.# PCI Slots 6 6 6 6 6
Integrated Graphics yes yes no no no
AGP 1x / 2x / 4x / 8x yes / yes / yes / no yes / yes / yes / no yes / yes / yes / no yes / yes / yes / no yes / yes / yes / no
Swipe to scroll horizontally
Chipset Intel 845E Intel 845G * Intel 845 VIA P4X266A VIA P4X333
Processor Plattform Intel Pentium 4
Chipset Northbridge Intel 82845E Intel 82845G Intel 82845 VIA P4X266A VIA P4X333
Chipset Southbridge Intel 82801 CA Intel 82801 CA Intel 82801 BA VIA VT8233A VIA VT8235
Front Side Bus Clock 400/533 MHz 400/533 MHz 400 MHz 400 MHz 400/533 MHz
Memory Clock 100/133/200/266 MHz 100/133/166/200/266/333 MHz 100/133 MHz 100/133/200/266 MHz 100/133/166/200/266/333 MHz
Asynchronous Memory Clock yes yes yes yes yes
max. # of memory Slots 3 3 4 4 4
max. Memory 2048 MB 2048 MB 2048 MB 3072 MB 3072 MB
SDRAM Support yes yes yes yes yes
DDR SDRAM Support yes yes no yes yes
RDRAM Support 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
Ultra-DMA/133 no no no yes yes
Max. # USB 6 6 4 6 6
USB 2.0 yes yes no yes yes
Max.# PCI Slots 6 6 6 5 6
Integrated Graphics no yes no no no
AGP 1x / 2x / 4x / 8x yes / yes / yes / no yes / yes / yes / no yes / yes / yes / no yes / yes / yes / no yes / yes / yes / yes
ACPI Features yes yes yes yes yes

* DDR333 will likely be supported in H2/2002

Patrick Schmid
Editor-in-Chief (2005-2006)

Patrick Schmid was the editor-in-chief for Tom's Hardware from 2005 to 2006. He wrote numerous articles on a wide range of hardware topics, including storage, CPUs, and system builds.