Are these PPD right?

on what WU at what clock speeds? and what WU?

generally they'll get between 4-5k ppd on a nice clock

lets see

its currently clocked @ 673/1577/1057

its the 420 also

up the voltage, flash it with nvflash/nibitor, make a custom BIOS for it pump the voltage up, and link the core and shaders in a 1:2.5 ratio then follow the straps... also make sure you're on drivers that are 180.2 or later, as CUDA 1.1 helps a bunch. also set the priority of the core to high, to try and get the most out of it...