"ASUS has been gracious in providing us with two enthusiast minded solutions for both DDR2 and DDR3 utilizing the same P35 chipset, in the Blitz Formula and Blitz Extreme. Why would ASUS consider offering the two options? Well in a nut shell, it simply saves you some money since new memory standards are always costly at the start and some users would like to really maximize their DDR2 based system. ASUS is well aware of this and felt that there was no reason why both kinds of memory module owners couldn't have a little bit of cake and ice cream. The only question you would need to ask yourself is, which flavor ice cream you would like."