DDR vs. DDR2 - What it means to you
OCC has a good read regarding the performance comaprisons between DDR and DDR2. Just because something is new doesn’t always mean that you should jump on it.
“We first thought of a head to head comparison for these two standards when we saw that Gigabyte had come out with a motherboard supporting both DDR and DDR2 which would make the testing as fair as possible. Using the same motherboard and chipset would prevent any outside factors from influencing the test results.”

Recovered from an Internet Archive snapshot of the InsaneTek front page.
