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 similar trends to those exhibited in the single-module listings, but with a bit more activity in terms of price increases. The double-digit price decreases still outnumbered the increases, with Mushkin HiPerformance PC3200 2x1-GB (-$18), Crucial Ballistix Tracer PC4000 2x512-MB (-$13), G.SKILL PC3200 2x1-GB (-$10), and Corsair XMS PC3200 XPert 2x1-GB (-$10) checking in as potential deals. Price spikes that hit similar levels included Kingston HyperX PC4000 2x1-GB (+$12) and Patriot PC4000 2x1-GB (+$18), which resulted in a nominal $22 aggregate chart drop.