Mobo manufacturers wary of DDR2 supply, prices
Intel's upcoming Grantsdale chipset will likely be the first desktop platform to support DDR2 memory, but motherboard manufacturers are concerned that DDR2 memory modules could carry up to a 100% price premium over standard DDR. Intel's Randy Wilhelm has assured manufacturers that Micron, Infineon, and Elpidia have committed to ramp DDR2 production in the third quarter of the year, but with Grantsdale due out in April, that seems a little late. In order to avoid potential shortages, manufacturers will apparently launch a first wave of Grantsdale boards with support for both DDR and DDR2 memory.
On the other side of the fence, AMD's Athlon 64 FX and Opteron processors aren't expected to support DDR2 memory until the end of the year.