Tom's Hardware Guide Mainboard Guide:

Tom's Hardware Guide Mainboard Guide: Episode II: Attack of the Chipsets - Intel 845E and 845G for 533 MHz FSB and DDR-SDRAM - Conclusion: i845G Jay - i845E Nay For people who want to go Pentium 4 'B', we recommend the following scenarios:
If you want top notch performance, consider i850E motherboards with officially unsupported PC1066 RDRAM and 'not validated' ICH4 south bridge. It will offer you the fastest Pentium 4 solution, USB 2.0 support, and maybe even Gigabit Ethernet. It lacks ATA133, as Intel does not support this standard.
If you look for good performance at a fair price, it's either Intel's 845G or VIA's P4X333. The latter is not supported by the big motherboard makers, as VIA is still without a P4-bus license and the lawsuit between Intel and VIA remains. Technically, P4X333 offers ATA133 as well as AGP8x support, while i845G has its integrated graphics and the better PCI-performance.
For the time being, we don't see a reason to recommend i845E until Intel equips it with DDR333 support.