Everest 2.0 is a professional system information, diagnostics and benchmarking program for Win32 platforms. It extracts details of all components of the PC. It also tests the actual read and write speeds of your memory to give a fairly accurate look of true memory performance.
Looks like a toss up when it comes to write speeds.
When it comes to read speeds the Prescott core has always been strong, but with the 1066FSB it easily takes the lead!