DDR333 - Only for the 845G

Although Intel still hasn't officially embraced DDR333 as a memory standard, motherboards based on the 845G chipset do support the proper multiplier in order to run the memory bus asynchronously at 166MHz for use with DDR333 memory. Obviously Intel's own 845G board won't allow it but the third party solutions out of Taiwan seem to have no problem with enabling DDR333 support. This gives the 845G the ability to compete with VIA's P4X333 on a performance level.

Unfortunately the same cannot be said about the 845E which only adds support for the 533MHz FSB without offering the proper multiplier for DDR333 memory.

We've included this table to help compare the latest Pentium 4 chipsets:

Chipset Feature Comparison
Chipset
Intel 845/845E
Intel 845G/845GL
Intel 850/850E
SiS 645/645DX
VIA P4X333
FSB Supported
400MHz/533MHz
400 - 533MHz
400MHz/533MHz
400MHz/533MHz
400 - 533MHz
Memory Supported
DDR200 - DDR266
DDR200 - DDR333*
PC800 - PC1066*
DDR200 - DDR333
DDR200 - DDR333
AGP Controller
4X
4X/None
4X
4X
8X
Integrated Graphics
No
Yes
No
No (SiS 650 - Yes)
No
South Bridge/ICH
ICH2/ICH4
ICH4
ICH2
SiS 961
VT8235
ATA Standard
ATA/100
ATA/100
ATA/100
ATA/100
ATA/133
USB Support
1.1/2.0
2.0
1.1
1.1
2.0

*Note - Unofficial support for DDR333/PC1066
Conserving Memory Bandwidth The Test
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