Codenamed Eaglelake, the P45 is the mainstream offering in the 4 series. This partly new chipset will support upcoming Core 2 Duo and Core 2 Extreme processors using a bumped 1600MHz Front Side Bus - current Core 2s use either a 800MHz, 1066MHz or 1333MHz FSB. In terms of features, the P45 can easily impress primarily due to the inclusion of the ICH10R south bridge.
Just recently Asus announced the Maximus II Formula which is based on the P45 chipset, and is the latest member of the elite Republic of Gamers series targeting gamers and overclocking enthusiasts alike. After all, they will need to aim at a certain niche willing to spend the big bucks given this board's suggested price tag of nearly $300.
View: Asus Maximus II Formula motherboard review @ TechSpot