Sandra CPU Reading?

If Speed in sandra is the raw ghz speed, then what does 'Model Number' men, if 'Performance Rating' is what the predicted AMD score would be? e.g. PR on is 1700+, the speed is 1.433ghz.

Model number is just the model number of the cpu like my 1600, but it estimates my PR as 2110 or somethin like that, and mine is only oced by 105mhz so its performance rating is wrong by amd standards, but my processor does compete with a 2.1ghz p4 so is is fairly accurate just not by amd standards, it should say my performance rating is like 1690 or so, if it was going by amd standards. So yes it is fairly accurate.