If you are setting up an i7 system, the Patriot Viper PC3-12800 6GB Triple Channel kit should appear on your wish list.  The timings are 9-9-9-24 @ 1600MHz and the kit will set you back about $250, offering a good value for performance when you consider the price tag DDR3 can come with.  Virtual Hideout can give you a full spread of benchmarks, including some comparisons of the performance in dual channel as well as triple channel.

“However, when the Patriot Viper PC3-12800 6GB Triple Channel Memory is pushed to its full potential, there’s a huge amount of memory bandwidth available which the I7 can use with things like audio and video formatting. It’s actually quite surprising to see just how fast the kit is in both dual and triple channel mode. To give you a good idea, formatting an 8GB video file came close to matching the Skull Trail’s performance which I had on demo at PDXLAN. The difference here is that the Skull Trail is two physical Core 2 Quad Extreme 1600 MHz FSB processors versus a single Extreme 965 with Hyperthread making virtually 8 cores.”

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