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.
The dual-channel DDR listings had significantly more activity than the single-module chart, and the majority turned out in the consumer's favor. There were six price drops that hit double digits, including a whopping $72 cut to the price of Rosewill PC3200 2x1-GB, and $30 and $20 drops to PNY Optima PC3200 2x1-GB and G.SKILL PC3200 C2.0 2x1-GB, respectively. There was only a single price increase of any kind, but it turned out to be a $14 spike that hit Crucial Ballistix TR PC4000 2x512-MB. The overall chart movement reflected these figures, and dual-channel DDR posted an aggregate chart drop of $178, a nice improvement over the -$136 we had in our previous guide.