Twice The Power: SiS655 With Dual DDR333

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16 P4 Chipsets Compared, Continued

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Header Cell - Column 0	Intel 845/D	Intel 845E	Intel 845G	Intel 850
Introduction	July / Dec 2001	May-02	May-02	Jan-01
Northbridge	i82845	i82845E	i82845G	i82850
Southbridge	i82801BA (ICH2)	i82801BA (ICH2)	i82801BA (ICH2)	i82801BA (ICH2)
FSB clock	100 MHz QDR	100, 133 MHz QDR	100, 133 MHz	100 MHz QDR
overclocking	Max. ~150 MHz	Max. ~166 MHz	Max. ~150 MHz	Max. ~130 MHz
Memory type	SDRAM	DDR SDRAM	DDR SDRAM	Rambus DRAM
Memory clock	133 MHz / DDR	100, 133, 166 MHz DDR	100, 133 MHz DDR	400 MHz DDR
Asynchronous memory clock	Yes	yes	No	no
Max. memory	2 GB	3 GB	2 GB	2 GB
Max. modules	3 DIMM	3 DIMM	3 DIMM	4 RIMM
Dual Channel support	no	no	no	yes
UltraATA 100/133	yes / no	yes / no	yes / no	yes / no
Max. #USB	4	4	4	4
USB type	USB 1.1	USB 2.0	USB 1.1	USB 1.1
Max. #PCI	6	6	6	4
AGP 4X/8X	yes / no	yes / no	yes / no	yes / no
Hyper Threading support	no	yes	yes	no

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Header Cell - Column 0	Intel 845PE	Intel 845GE	Intel 850E	Intel E7205
Introduction	Sep-02	Sep-02	May-02	Nov-02
Northbridge	i82845E	i82845G	i82850E	i7205
Southbridge	i82801DB (ICH4)	i82801DB (ICH4)	i82801BA (ICH2)	i82801DB (ICH4)
FSB clock	100, 133 MHz QDR	100, 133 MHz QDR	100, 133 MHz QDR	100, 133 MHz QDR
overclocking	Max. ~200 MHz	Max. ~180 MHz	Max. ~150 MHz	Max. ~200 MHz
Memory type	DDR SDRAM	DDR SDRAM	Rambus DRAM	DDR SDRAM
Memory clock	100, 133, 166 MHz DDR	100, 133, 166 MHz DDR	400, 533 MHz DDR	100, 133 MHz DDR
Asynchronous memory clock	yes	yes	no	no
Max. memory	3 GB	3 GB	2 GB	4 GB
Max. modules	3 DIMM	3 DIMM	4 RIMM	4 DIMM
Dual Channel support	no	no	yes	yes
UltraATA 100/133	yes / no	yes / no	yes / no	yes / no
Max. #USB	4	4	4	4
USB type	USB 2.0	USB 2.0	USB 1.1	USB 2.0
Max. #PCI	6	6	6	6
AGP 4X/8X	yes / no	yes / no	yes / no	yes / yes
Hyper Threading support	yes	yes	yes	yes

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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.