OCZ's latest combines both high frequencies as well as tighter than average timings.

"A lot of people, and manufacturers (AMD) have steered clear of DDR2 due to the high latency, regardless of speeds the latency canceled out any performance gain so it just wasn't worth it to switch to DDR2. That is all starting to change with much higher speeds and latency dropping with each new product DDR2 is finally coming into it's own."



Link: Viper's Lair