The log of the gamer

Well, all overclockers know motherboard maker AsRock. It’s famous for its’ hybrid designed mobos:

• Socket 754 with an option to insert add-in card to support Socket 939,
• Socket 775 with support of both DDR/DDR2 and AGP/PCI-Express,
• Socket 775 with support of DDR2 and DDR3.

Some of those cases aren’t really unusual (check for instance Asus P5KC/P5QC), however, this led me to wonder whether it would be possible to combine DDR1 and DDR3  or maybe even DDR, DDR2 and DDR3 on one motherboard. Apart from clear issue of limited space it would be interesting if it’s possible to design such chipset or memory controller and what would be the difference in performance between those two. As we all know, there isn’t much difference between DDR and DDR2, as it has been checked in cases of 939- and AM2-based Athlon 64 systems, and with mentioned AsRocks with Intel’s E6×00 CPUs.

The question remains open and I don’t see if it is going to be verified in any way other to comparing DDR to DDR2, then DDR2 to DDR3 and adjusting the results somehow.