Skip to main content

DDR400 Kills Rambus: Shooting Star SiS 648 for P4

Comparison: Chipsets For Pentium 4

ChipsetIntel 850EIntel 845GIntel 845ESiS 648SiS 645DXSiS 645Intel 850
IntroductionMay 2002May 2002May 2002July 2002March 2002November 2001January 2001
Processor PlattformSocket 478Socket 478Socket 478Socket 478Socket 478Socket 478Socket 423/478
Supported CPUIntel Pentium 4Intel Pentium 4Intel Pentium 4Intel Pentium 4Intel Pentium 4Intel Pentium 4Intel Pentium 4
Chipset NorthbridgeIntel KC82850EIntel RG82845GIntel RG8245EESSiS 648SiS 645DXSiS 645Intel KC82850
Chipset SouthbridgeIntel 82801 BAIntel 82801 DBIntel 82801 DBSiS 963SiS 961SiS 961Intel 82801 BA
Front Side Bus Clock100/133 MHz100/133 MHz100/133 MHz100/133/166 MHz100/133 MHz100 MHz100/133 MHz
Memory Clock400 MHz/533 MHz100/133/166 MHz100/133 MHz100/133/166/200 MHz100/133/166/200 MHz100/133 MHz400 MHz
Asynchronous Memory Clockyesyesyesyesyesyesyes
FSB-Overclockingup to 166 MHzup to 166 MHzup to 166 MHzup to 200 MHzup to 166 MHzup to 133 MHzup to 133 MHz
max. # DIMM-Slots4333334
max. Memory2048 MB3072 MB3072 MB2048 MB3072 MB3072 MB2048 MB
SDRAM Supportnoyesyesnoyesyesno
DDR SDRAM Supportnoyesyesyesyesyesno
VC SDRAM Supportnonononononono
RDRAM Support (Rambus)yesnononononoyes
Dual RDRAM Support (Rambus)yesnononononoyes
Ultra-DMA/33/66/100yes/yes/yesyes/yes/yesyes/yes/yesyes/yes/yesyes/yes/yesyes/yes/yesyes/yes/yes
Ultra-DMA/133nononoyesnonono
Max. # USB4446444
USB 2.0noyesyesyesnonono
Max.# PCI Slots6666666
Integrated Graphicsnoyesnonoyesyesno
AGP 1x / 2x / 4xyes / yes / yesyes / yes / yesyes / yes / yesyes / yes / yesyes / yes / yesyes / yes / yesyes / yes / yes
AGP 8xnononoyesnonono
ACPI Featuresyesyesyesyesyesyesyes

ChipsetIntel 850Intel 845DIntel 845VIA P4X333VIA P4X266VIA P4X266A
IntroductionJanuary 2001December 2001July 2001May 2002August 2001December 2001
Processor PlattformSocket 423/478Socket 478Socket 423/478Socket 478Socket 423/478Socket 478
Supported CPUIntel Pentium 4Intel Pentium 4Intel Pentium 4Intel Pentium 4Intel Pentium 4Intel Pentium 4
Chipset NorthbridgeIntel KC82850Intel 82845Intel 82845VIA P4X333VIA VT8753VIA P4X266A
Chipset SouthbridgeIntel 82801 BAIntel 82801 BAIntel 82801 BAVIA VT8233AVIA VT8233VIA VT8233A
Front Side Bus Clock100/133 MHz66/100/133 MHz66/100/133 MHz100/133 MHz100 MHz100 MHz
Memory Clock400 MHz100/133 MHz100/133 MHz100/133/166 MHz100/133 MHz100/133 MHz
Asynchronous Memory Clockyesyesyesyesyesyes
FSB-Overclockingup to 133 MHzup to 166 MHzup to 180 MHzup to 200 MHzup to 180 MHzup to 180 MHz
max. # DIMM-Slots434444
max. Memory2048 MB2048 MB2048 MB3072 MB4096 MB3072 MB
SDRAM Supportnonoyesyesyesyes
DDR SDRAM Supportnoyesnoyesyesyes
VC SDRAM Supportnononoyesyesyes
RDRAM Support (Rambus)yesnonononono
Dual RDRAM Support (Rambus)yesnonononono
Ultra-DMA/33/66/100yes/yes/yesyes/yes/yesyes/yes/yesyes/yes/yesyes/yes/yesyes/yes/yes
Ultra-DMA/133nononoyesnoyes
Max. # USB446666
USB 2.0nonoyesyesnoyes
Max.# PCI Slots666555
Integrated Graphicsnononononono
AGP 1x / 2x / 4xyes / yes / yesyes / yes / yesyes / yes / yesyes / yes / yesyes / yes / yesyes / yes / yes
AGP 8xnononoyesnoyes
ACPI Featuresyesyesyesyesyesyes

The table above lists all the chipsets currently available for the Intel Socket 478 platform. Older chipsets with SDRAM support (e.g., Intel 845) are not included here because these chips haven't been available on the market or haven't been produced for a while.