I changed from a 478 Northwood 3.0Ghz(SL6WK) to a Prescott3.4Ghz(SL7E6). The Prescott performs horribly compared to the Northwood. I am saving for a new Northwood core, I want to get a 3.2 or 3.4 with/without the 30 capacitors. My original CPU was the SL6WK, and it was fantastic. I am running a Dell 4600i, and the max supported speed is 3.4Ghz. I would really like to get one of the 30 capacitor Northwood's at 3.0Ghz+, as I hear they are "failed" Gallatin cores. I would like to know what the performance will be like versus the regular 12 capacitor models. I won't be overclocking. On a final note: If anyone here has a Northwood(478 preferable), and CPUmark 2.1 please post your score. My Prescott shows a score of 4270.