Changing Of The Guard: Four Athlon Motherboards For DDR400

Consistent Development: From KT266 To KT333 And KT400

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ChipsetVIA Apollo KT400VIA Apollo KT333VIA Apollo KT266AVIA Apollo KT266
Launch DateSeptember 2002February 2002September 2001April 2001
PlatformSocket 462Socket 462Socket 462Socket 462
ProcessorsAMD Duron/ Athlon/XPAMD Duron/ Athlon/XPAMD Duron/ Athlon/XPAMD Duron/ Athlon/XP
Multi-processor Supportnononono
NorthbridgeVIA KT400VIA KT333VIA KT266AVIA VT8366
SouthbridgeVIA VT8235VIA VT8233AVIA VT8233VIA VT8233
Front Side Bus100/133/166 MHz DDR100/133/166 MHz DDR100/133 MHz DDR100/133 MHz DDR
Memory Clock100/133/ 166/200 MHz DDR100/133/ 166 MHz DDR100/133 MHz DDR100/133 MHz DDR
Asynchronous Memoryyesyesyesyes
Max. # DIMM Slots4444
Max. Memory3072 MB3072 MB3072 MB3072 MB
DDR SDRAM Supportyesyesyesyes
Ultra-DMA/33/ 66/100/133yes/yes/ yes/yesyes/yes/ yes/yesyes/yes/ yes/noyes/yes/ yes/no
# USB connectors6 (USB 2.0)6 (USB 2.0)66
Max. # PCI slots6666
Integrated graphics corenononono
Integrated soundyesyesyesyes
AGP 1x / 2x / 4x / 8xyes/yes/ yes/yesyes/yes/ yes/noyes/yes/ yes/noyes/yes/ yes/no

When it comes to VIA's chipset family, progress can divided into two areas: first, there's the performance boost that results from particular methods, such as improving the memory controller - and here, memory increase is included. Secondly, numerous integrated features are updated from time to time to reflect the latest technology, for example, the implementation of UltraATA/133 or USB 2.0. It's difficult to categorize AGP 8x because there are no graphics cards available to test what the real performance advantages are that come with doubled AGP bandwidth.