The dual-channel memory format is the standard for high-end performance systems, and is the de facto packaging for most DDR memory. The "matched pair" format has become very popular, as these DDR module kits are perfectly suited for the requirements of high-end dual-channel DDR operation, and are a much safer buy than purchasing one module now and hoping to match it up later. The most popular configurations are currently the 2x512-MB and 2x1-GB kits (although 2x2-GB are emerging) and with few exceptions, vendors offer the same basic speeds in matched pair DDR kits, as with their single module DDR.
In terms of individual price changes, there is more activity in the dual-channel DDR listings, but this is certainly not all good news. There were a couple of price drops to show, but the largest was only a $9 cut to the price of Patriot PC3200 2x1-GB. This might have contributed to an average week, if not for the action at the other end of things. There were two hefty price increases to consider, as Rosewill PC3200 2x1-GB jumped by $27 and Crucial Ballistix Tracer PC4000 2x512-MB spiked up by $30. These two helped skew the overall results, and the matched pair DDR chart displayed an aggregate chart increase of $55.