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 2x512MB and 2x1GB kits (although 2x2GB are emerging) and with few exceptions, vendors offer the same basic speeds in matched pair DDR kits, as with their single module DDR.
There was slightly more activity in the dual-channel DDR listings, but we found additional price increases as well. Only one listing fell by double digits, as the Ultra PC3200 2x1GB kit received a $10 cut. But that was it for significant downward movement, and the next largest drop was only $3. The Corsair XMS PC3200 Pro 2x1GB matched pair kit jumped by $18, canceling out all of the price drops, and it was followed by a small set of $2-$5 price spikes. The overall pricing trend mirrored this, and the chart increased by an aggregate total of $17.