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 news in the dual-channel DDR chart is certainly no better, and is actually a bit worse. The largest price cut was $8 off OCZ PC3200 Performance 2x1-GB, and this was followed up by Kingston HyperX PC3200 2x512-MB and Crucial Ballistix Tracer PC4000 2x512-MB kits, which fell by $7 and $4, respectively. Unfortunately, the activity increased as we moved down the chart listings, and there were two significant price increases - G.SKILL PC3200 C2.5 2x1-GB spiked by $34, while Corsair Value PC3200 2x1-GB jumped by $12. This doesn't spell good news for matched pair DDR buyers, and the chart increased by an aggregate total of $31.