DDR333 For Athlon: VIA KT333 vs. KT266A

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Comparison: VIA KT333 Vs. KT266A

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Chipset	VIA Apollo KT333	VIA Apollo KT266A	VIA Apollo KT266	Nvidia nForce
Introduction	Feb-02	Sep-01	Apr-01	Sep-01
Platform	Socket 462	Socket 462	Socket 462	Socket 462
Supported processors	AMD Duron/Athlon/XP	AMD Duron/Athlon/XP	AMD Duron/Athlon/XP	AMD Duron/Athlon/XP
Multi-processor support	no	no	no	no
Northbridge	VIA KT333	VIA KT266A	VIA VT8366	Nvidia IGP 128
Southbridge	VIA VT8233A	VIA VT8233	VIA VT8233	Nvidia MCP-D
Front Side Bus clock	100/133/166 MHz	100/133 MHz	100/133 MHz	100/133 MHz
Memory clock	100/133/166 MHz	100/133 MHz	100/133 MHz	100/133 MHz
Asynchronous memory clock	yes	yes	yes	yes
FSB overclocking*	up to 230 MHz	up to 200 MHz	up to 200 MHz	up to 150 MHz
Max. # DIMM slots	4	4	4	3
Max. memory	3072 MB	3072 MB	3072 MB	4096 MB
SDRAM support	yes	yes	yes	no
DDR SDRAM support	yes	yes	yes	yes
Dual-channel DDR support	no	no	no	yes
RIMM support (Rambus)	no	no	no	no
Ultra-DMA/33/66/100/133	yes/yes/yes/yes	yes/yes/yes/no	yes/yes/yes/no	yes/yes/yes/no
# USB connectors	6	6	6	6
Max. # PCI slots	6	6	6	6
integrated graphics core	no	no	no	yes
integrated sound	yes	yes	yes	yes
AGP 1x / 2x / 4x / 8x	yes/yes/yes/yes	yes/yes/yes/no	yes/yes/yes/no	yes/yes/yes/no
ACPI supported	yes	yes	yes	yes
USB 2.0 support	yes	no	no	no

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Chipset	AMD 760	SiS 735	ALi Magik 1
Introduction	February 2001	May 2001	February 2001
Platform	Socket 462	Socket 462	Socket 462
Supported processors	AMD Duron/Athlon/XP	AMD Duron/Athlon/XP	AMD Duron/Athlon/XP
Multi-processor support	no	no	no
Northbridge	AMD 761	SiS 735	ALi M1647
Southbridge	AMD 765	integrated	ALi M1535D+
Front Side Bus clock	100/133 MHz	66/100/133 MHz	100/133 MHz
Memory clock	100/133 MHz	66/100/133 MHz	100/133 MHz
Asynchronous memory clock	yes	yes	yes
FSB overclocking*	up to 150 MHz	up to 150 MHz	up to 150 MHz
Max. # DIMM slots	4	3	4
Max. memory	2048 MB	1536 MB	1024 MB
SDRAM support	no	yes	yes
DDR SDRAM support	yes	yes	yes
Dual-channel DDR support	no	no	no
RIMM support (Rambus)	no	no	no
Ultra-DMA/33/66/100/133	yes/yes/yes/no	yes/yes/yes/no	yes/yes/yes/no
# USB connectors	4	6	6
Max. # PCI slots	4	6	6
integrated graphics core	no	no	no
integrated sound	yes	yes	yes
AGP 1x / 2x / 4x / 8x	yes/yes/yes/no	yes/yes/yes/no	yes/yes/yes/no
ACPI supported	yes	yes	yes
USB 2.0 support	no	no	no

The following table lists all of the chipsets that are currently available for the AMD Socket 462 platform and support DDR SDRAM. Older models with SDRAM support (such as VIA KT133A) are not taken into consideration here, because for a while now, boards with such chips have no longer been produced and offered on the market.

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