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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
Swipe to scroll horizontally
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.
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