Does 133 MHz Processor Bus Clock Require DDR-Memory?
We recently published a comparison between the first two DDR chipsets, the
Right now DDR-DIMMs are still very hard to get and more expensive than standard PC133 SDRAM. Surprisingly enough DDR memory chips are hardly more difficult to produce than Single Data Rate chips. At the end of the manufacturing process, the bonding decides whether the chip becomes a SDR or a DDR model. Due to unavailability of motherboards, the demand for DDR memory modules is currently rather small. As soon as the memory makers will change their production in favor of DDR chips, we can expect falling prices.
As soon as motherboards with DDR-memory support become widely available, the most power-hungry Athlon-users might want to choose AMD760-platforms and DDR-SDRAM, because it offers the highest performance for Athlon processors to date. People who can live without the little performance gain achieved by DDR-platforms will be just as satisfied with Athlons at 133 (266) MHz FSB clock and PC133 SDRAM, as now offered by platforms based on VIA's Apollo KT133A chipset. Once DDR-memory has reached the same price point as PC133 SDRAM the story changes and DDR-platforms will become the smartest choice.