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 chart showed very similar trends to those exhibited in the single-module listings. The price cuts outnumbered the jumps, and even the total chart drop of $69 was close. Some of the price decreases were even juicier, including Mushkin eXtreme PC4000LL 2x1-GB (-$33), Kingston HyperX PC4000 2x1-GB (-$25), pqi TURBO PC3200 2x1-GB (-$16), and Corsair XMS PC4000 2x1-GB (-$15). The only real change was a bit more activity on the other end of things, with a pair of double-digit price increases to contend with: Crucial Ballistix Tracer PC4000 2x512-MB (+$13) and Corsair XMS PC3200 XPert 2x1-GB (+$18).