My PX5 board with octacore and 4GB ram performs excellently. Barely 30% of RAM usage when I run iGo, Pandora, and iBus. If I add one of the Wx radar mapping apps or Wx channel or Spectrum TV I still get snappy performance in all the apps.
When it was a PX3 board with 1GB RAM, I experienced pathetic app response, even when lightly loaded.
Good call on the OEM look and butonology.
Mike