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Comparison: Chipsets For P4
Swipe to scroll horizontally
Chipset
Intel 850E
Intel 845G
Intel 845E
SiS 648
Introduction
May 2002
May 2002
May 2002
July 2002
Processor Platform
Socket 478
Socket 478
Socket 478
Socket 478
Supported CPU
Intel Pentium 4
Intel Pentium 4
Intel Pentium 4
Intel Pentium 4
Chipset Northbridge
Intel KC82850E
Intel RG82845G
Intel RG8245EES
SiS 648
Chipset Southbridge
Intel 82801 BA
Intel 82801 DB
Intel 82801 DB
SiS 961
Front Side Bus Clock
100/133 MHz
100/133 MHz
100/133 MHz
100/133 MHz
Memory Clock
400 MHz/533 MHz
100/133/166 MHz
100/133 MHz
400/533/600 MHz
Asynchronous Memory Clock
yes
yes
yes
yes
FSB Overclocking
up to 166 MHz
up to 166 MHz
up to 166 MHz
up to 200 MHz
max. # DIMM-Slots
4
3
3
4
max. Memory
2048 MB
3072 MB
3072 MB
2048 MB
SDRAM Support
no
yes
yes
no
DDR SDRAM Support
no
yes
yes
yes
VC SDRAM Support
no
no
no
no
RDRAM Support (Rambus)
yes
no
no
no
Dual RDRAM Support (Rambus)
yes
no
no
no
Ultra-DMA/33/66/100
yes/yes/yes
yes/yes/yes
yes/yes/yes
yes/yes/yes
Ultra-DMA/133
no
no
no
yes
Max. # USB
4
4
4
4
USB 2.0
no
yes
yes
yes
Max.# PCI Slots
6
6
6
6
Integrated Graphics
no
yes
no
yes
AGP 1x / 2x / 4x
yes / yes / yes
yes / yes / yes
yes / yes / yes
yes / yes / yes
AGP 8x
no
no
no
yes
ACPI Features
yes
yes
yes
yes
Swipe to scroll horizontally
Chipset
SiS 645DX
SiS 645
Intel 850
Intel 845D
Introduction
March 2002
November 2001
January 2001
December 2001
Processor Platform
Socket 478
Socket 478
Socket 423/478
Socket 478
Supported CPU
Intel Pentium 4
Intel Pentium 4
Intel Pentium 4
Intel Pentium 4
Chipset Northbridge
SiS 645DX
SiS 645
Intel KC82850
Intel 82845
Chipset Southbridge
SiS 961
SiS 961
Intel 82801 BA
Intel 82801 BA
Front Side Bus Clock
100/133 MHz
100 MHz
100/133 MHz
66/100/133 MHz
Memory Clock
100/133/166/200 MHz
100/133 MHz
400 MHz
100/133 MHz
Asynchronous Memory Clock
yes
yes
yes
yes
FSB Overclocking
up to 166 MHz
up to 133 MHz
up to 133 MHz
up to 166 MHz
max. # DIMM-Slots
3
3
4
3
max. Memory
3072 MB
3072 MB
2048 MB
2048 MB
SDRAM Support
yes
yes
no
no
DDR SDRAM Support
yes
yes
no
yes
VC SDRAM Support
no
no
no
no
RDRAM Support (Rambus)
no
no
yes
no
Dual RDRAM Support (Rambus)
no
no
yes
no
Ultra-DMA/33/66/100
yes/yes/yes
yes/yes/yes
yes/yes/yes
yes/yes/yes
Ultra-DMA/133
no
no
no
no
Max. # USB
4
4
4
4
USB 2.0
no
no
no
no
Max.# PCI Slots
6
6
6
6
Integrated Graphics
yes
yes
no
no
AGP 1x / 2x / 4x
yes / yes / yes
yes / yes / yes
yes / yes / yes
yes / yes / yes
AGP 8x
no
no
no
no
ACPI Features
yes
yes
yes
yes
Swipe to scroll horizontally
Chipset
Intel 845
VIA P4X333
VIA P4X266
VIA P4X266A
Introduction
July 2001
May 2002
August 2001
December 2001
Processor Platform
Socket 423/478
Socket 478
Socket 423/478
Socket 478
Supported CPU
Intel Pentium 4
Intel Pentium 4
Intel Pentium 4
Intel Pentium 4
Chipset Northbridge
Intel 82845
VIA P4X333
VIA VT8753
VIA P4X266A
Chipset Southbridge
Intel 82801 BA
VIA VT8233A
VIA VT8233
VIA VT8233A
Front Side Bus Clock
66/100/133 MHz
100/133 MHz
100 MHz
100 MHz
Memory Clock
100/133 MHz
100/133/166 MHz
100/133 MHz
100/133 MHz
Asynchronous Memory Clock
yes
yes
yes
yes
FSB Overclocking
up to 180 MHz
up to 200 MHz
up to 180 MHz
up to 180 MHz
max. # DIMM-Slots
4
4
4
4
max. Memory
2048 MB
3072 MB
4096 MB
3072 MB
SDRAM Support
yes
yes
yes
yes
DDR SDRAM Support
no
yes
yes
yes
VC SDRAM Support
no
yes
yes
yes
RDRAM Support (Rambus)
no
no
no
no
Dual RDRAM Support (Rambus)
no
no
no
no
Ultra-DMA/33/66/100
yes/yes/yes
yes/yes/yes
yes/yes/yes
yes/yes/yes
Ultra-DMA/133
no
yes
no
yes
Max. # USB
6
6
6
6
USB 2.0
yes
yes
no
yes
Max.# PCI Slots
6
5
5
5
Integrated Graphics
no
no
no
no
AGP 1x / 2x / 4x
yes / yes / yes
yes / yes / yes
yes / yes / yes
yes / yes / yes
AGP 8x
no
yes
no
yes
ACPI Features
yes
yes
yes
yes
The table above lists all the chipsets currently available for the Intel Platform (Socket 478). Older chipsets with SDRAM support (e.g., the Intel 845) are not included here, because boards with these chips are either no longer produced, or haven't been available on the market for a while.
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